From 744cb4d2c908a025204d9d5d0d1c038acd51db11 Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Thu, 2 Jun 2016 14:30:33 -0400
Subject: [PATCH 1/8] Add templates for destructuring with dflt params
---
.../default/arrow-function-dflt.template | 48 ++++++++++++
.../default/cls-decl-gen-meth-dflt.template | 71 ++++++++++++++++++
.../cls-decl-gen-meth-static-dflt.template | 71 ++++++++++++++++++
.../default/cls-decl-meth-dflt.template | 69 ++++++++++++++++++
.../cls-decl-meth-static-dflt.template | 69 ++++++++++++++++++
.../default/cls-expr-gen-meth-dflt.template | 73 +++++++++++++++++++
.../cls-expr-gen-meth-static-dflt.template | 73 +++++++++++++++++++
.../default/cls-expr-meth-dflt.template | 70 ++++++++++++++++++
.../cls-expr-meth-static-dflt.template | 70 ++++++++++++++++++
.../default/func-decl-dflt.template | 48 ++++++++++++
.../default/func-expr-dflt.template | 49 +++++++++++++
.../default/gen-func-decl-dflt.template | 47 ++++++++++++
.../default/gen-func-expr-dflt.template | 49 +++++++++++++
.../default/gen-method-dflt.template | 55 ++++++++++++++
src/dstr-binding/default/meth-dflt.template | 52 +++++++++++++
.../error/arrow-function-dflt.template | 44 +++++++++++
.../error/cls-decl-gen-meth-dflt.template | 69 ++++++++++++++++++
.../cls-decl-gen-meth-static-dflt.template | 68 +++++++++++++++++
.../error/cls-decl-meth-dflt.template | 68 +++++++++++++++++
.../error/cls-decl-meth-static-dflt.template | 66 +++++++++++++++++
.../error/cls-expr-gen-meth-dflt.template | 71 ++++++++++++++++++
.../cls-expr-gen-meth-static-dflt.template | 70 ++++++++++++++++++
.../error/cls-expr-meth-dflt.template | 69 ++++++++++++++++++
.../error/cls-expr-meth-static-dflt.template | 67 +++++++++++++++++
.../error/func-decl-dflt.template | 46 ++++++++++++
.../error/func-expr-dflt.template | 45 ++++++++++++
.../error/gen-func-decl-dflt.template | 45 ++++++++++++
.../error/gen-func-expr-dflt.template | 45 ++++++++++++
src/dstr-binding/error/gen-meth-dflt.template | 52 +++++++++++++
src/dstr-binding/error/meth-dflt.template | 49 +++++++++++++
30 files changed, 1788 insertions(+)
create mode 100644 src/dstr-binding/default/arrow-function-dflt.template
create mode 100644 src/dstr-binding/default/cls-decl-gen-meth-dflt.template
create mode 100644 src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
create mode 100644 src/dstr-binding/default/cls-decl-meth-dflt.template
create mode 100644 src/dstr-binding/default/cls-decl-meth-static-dflt.template
create mode 100644 src/dstr-binding/default/cls-expr-gen-meth-dflt.template
create mode 100644 src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
create mode 100644 src/dstr-binding/default/cls-expr-meth-dflt.template
create mode 100644 src/dstr-binding/default/cls-expr-meth-static-dflt.template
create mode 100644 src/dstr-binding/default/func-decl-dflt.template
create mode 100644 src/dstr-binding/default/func-expr-dflt.template
create mode 100644 src/dstr-binding/default/gen-func-decl-dflt.template
create mode 100644 src/dstr-binding/default/gen-func-expr-dflt.template
create mode 100644 src/dstr-binding/default/gen-method-dflt.template
create mode 100644 src/dstr-binding/default/meth-dflt.template
create mode 100644 src/dstr-binding/error/arrow-function-dflt.template
create mode 100644 src/dstr-binding/error/cls-decl-gen-meth-dflt.template
create mode 100644 src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
create mode 100644 src/dstr-binding/error/cls-decl-meth-dflt.template
create mode 100644 src/dstr-binding/error/cls-decl-meth-static-dflt.template
create mode 100644 src/dstr-binding/error/cls-expr-gen-meth-dflt.template
create mode 100644 src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
create mode 100644 src/dstr-binding/error/cls-expr-meth-dflt.template
create mode 100644 src/dstr-binding/error/cls-expr-meth-static-dflt.template
create mode 100644 src/dstr-binding/error/func-decl-dflt.template
create mode 100644 src/dstr-binding/error/func-expr-dflt.template
create mode 100644 src/dstr-binding/error/gen-func-decl-dflt.template
create mode 100644 src/dstr-binding/error/gen-func-expr-dflt.template
create mode 100644 src/dstr-binding/error/gen-meth-dflt.template
create mode 100644 src/dstr-binding/error/meth-dflt.template
diff --git a/src/dstr-binding/default/arrow-function-dflt.template b/src/dstr-binding/default/arrow-function-dflt.template
new file mode 100644
index 0000000000..b6e0eabd9b
--- /dev/null
+++ b/src/dstr-binding/default/arrow-function-dflt.template
@@ -0,0 +1,48 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/arrow-function/dstr-dflt-
+name: arrow function expression (default parameter)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = (/*{ elems }*/ = /*{ vals }*/) => {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/src/dstr-binding/default/cls-decl-gen-meth-dflt.template b/src/dstr-binding/default/cls-decl-gen-meth-dflt.template
new file mode 100644
index 0000000000..3523cd63b9
--- /dev/null
+++ b/src/dstr-binding/default/cls-decl-gen-meth-dflt.template
@@ -0,0 +1,71 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/dstr-gen-meth-dflt-
+name: class expression method (default parameters)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template b/src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
new file mode 100644
index 0000000000..bb257929b9
--- /dev/null
+++ b/src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
@@ -0,0 +1,71 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/dstr-gen-meth-static-dflt-
+name: static class expression generator method (default parameter)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/default/cls-decl-meth-dflt.template b/src/dstr-binding/default/cls-decl-meth-dflt.template
new file mode 100644
index 0000000000..9a073c5b74
--- /dev/null
+++ b/src/dstr-binding/default/cls-decl-meth-dflt.template
@@ -0,0 +1,69 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/dstr-meth-dflt-
+name: class expression method (default parameter)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/default/cls-decl-meth-static-dflt.template b/src/dstr-binding/default/cls-decl-meth-static-dflt.template
new file mode 100644
index 0000000000..07f25960ab
--- /dev/null
+++ b/src/dstr-binding/default/cls-decl-meth-static-dflt.template
@@ -0,0 +1,69 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/dstr-meth-static-dflt-
+name: static class expression method (default parameter)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/default/cls-expr-gen-meth-dflt.template b/src/dstr-binding/default/cls-expr-gen-meth-dflt.template
new file mode 100644
index 0000000000..b8963fdc05
--- /dev/null
+++ b/src/dstr-binding/default/cls-expr-gen-meth-dflt.template
@@ -0,0 +1,73 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/dstr-gen-meth-dflt-
+name: class expression method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template b/src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
new file mode 100644
index 0000000000..fd512fc015
--- /dev/null
+++ b/src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
@@ -0,0 +1,73 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/dstr-gen-meth-static-dflt-
+name: static class expression generator method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/default/cls-expr-meth-dflt.template b/src/dstr-binding/default/cls-expr-meth-dflt.template
new file mode 100644
index 0000000000..c2a5f0e4ad
--- /dev/null
+++ b/src/dstr-binding/default/cls-expr-meth-dflt.template
@@ -0,0 +1,70 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/dstr-meth-dflt-
+name: class expression method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/default/cls-expr-meth-static-dflt.template b/src/dstr-binding/default/cls-expr-meth-static-dflt.template
new file mode 100644
index 0000000000..831d74e41a
--- /dev/null
+++ b/src/dstr-binding/default/cls-expr-meth-static-dflt.template
@@ -0,0 +1,70 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/dstr-meth-static-dflt-
+name: static class expression method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/default/func-decl-dflt.template b/src/dstr-binding/default/func-decl-dflt.template
new file mode 100644
index 0000000000..9b58d5a198
--- /dev/null
+++ b/src/dstr-binding/default/func-decl-dflt.template
@@ -0,0 +1,48 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/function/dstr-dflt-
+name: function declaration (default parameter)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function f(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/src/dstr-binding/default/func-expr-dflt.template b/src/dstr-binding/default/func-expr-dflt.template
new file mode 100644
index 0000000000..bee2b4aa22
--- /dev/null
+++ b/src/dstr-binding/default/func-expr-dflt.template
@@ -0,0 +1,49 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/function/dstr-dflt-
+name: function expression (default parameter)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/src/dstr-binding/default/gen-func-decl-dflt.template b/src/dstr-binding/default/gen-func-decl-dflt.template
new file mode 100644
index 0000000000..a5eb965ab0
--- /dev/null
+++ b/src/dstr-binding/default/gen-func-decl-dflt.template
@@ -0,0 +1,47 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/generators/dstr-dflt-
+name: generator function declaration (default parameter)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function* f(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/src/dstr-binding/default/gen-func-expr-dflt.template b/src/dstr-binding/default/gen-func-expr-dflt.template
new file mode 100644
index 0000000000..f3f16ae6d8
--- /dev/null
+++ b/src/dstr-binding/default/gen-func-expr-dflt.template
@@ -0,0 +1,49 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/generators/dstr-dflt-
+name: generator function expression (default parameter)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function*(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/src/dstr-binding/default/gen-method-dflt.template b/src/dstr-binding/default/gen-method-dflt.template
new file mode 100644
index 0000000000..0a75534c61
--- /dev/null
+++ b/src/dstr-binding/default/gen-method-dflt.template
@@ -0,0 +1,55 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/dstr-gen-meth-dflt-
+name: generator method (default parameter)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/src/dstr-binding/default/meth-dflt.template b/src/dstr-binding/default/meth-dflt.template
new file mode 100644
index 0000000000..3a8b825e7e
--- /dev/null
+++ b/src/dstr-binding/default/meth-dflt.template
@@ -0,0 +1,52 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/dstr-meth-dflt-
+name: method (default parameter)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dstr-binding/error/arrow-function-dflt.template b/src/dstr-binding/error/arrow-function-dflt.template
new file mode 100644
index 0000000000..268fbe58b8
--- /dev/null
+++ b/src/dstr-binding/error/arrow-function-dflt.template
@@ -0,0 +1,44 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/arrow-function/dstr-dflt-
+name: arrow function expression (default parameter)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var f = (/*{ elems }*/ = /*{ vals }*/) => {};
+
+assert.throws(/*{ error }*/, function() {
+ f();
+});
diff --git a/src/dstr-binding/error/cls-decl-gen-meth-dflt.template b/src/dstr-binding/error/cls-decl-gen-meth-dflt.template
new file mode 100644
index 0000000000..48479af1b1
--- /dev/null
+++ b/src/dstr-binding/error/cls-decl-gen-meth-dflt.template
@@ -0,0 +1,69 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/dstr-gen-meth-dflt-
+name: class expression method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+class C {
+ *method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+var c = new C();
+
+assert.throws(/*{ error }*/, function() {
+ c.method();
+});
diff --git a/src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template b/src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
new file mode 100644
index 0000000000..ba0ee63759
--- /dev/null
+++ b/src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
@@ -0,0 +1,68 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/dstr-gen-meth-static-dflt-
+name: static class expression generator method (default parameter)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+class C {
+ static *method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+
+assert.throws(/*{ error }*/, function() {
+ C.method();
+});
diff --git a/src/dstr-binding/error/cls-decl-meth-dflt.template b/src/dstr-binding/error/cls-decl-meth-dflt.template
new file mode 100644
index 0000000000..6824a0a039
--- /dev/null
+++ b/src/dstr-binding/error/cls-decl-meth-dflt.template
@@ -0,0 +1,68 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/dstr-meth-dflt-
+name: class expression method (default parameter)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+class C {
+ method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+
+var c = new C();
+
+assert.throws(/*{ error }*/, function() {
+ c.method();
+});
diff --git a/src/dstr-binding/error/cls-decl-meth-static-dflt.template b/src/dstr-binding/error/cls-decl-meth-static-dflt.template
new file mode 100644
index 0000000000..7c86010dbf
--- /dev/null
+++ b/src/dstr-binding/error/cls-decl-meth-static-dflt.template
@@ -0,0 +1,66 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/dstr-meth-static-dflt-
+name: static class expression method (default parameter)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+class C {
+ static method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+
+assert.throws(/*{ error }*/, function() {
+ C.method();
+});
diff --git a/src/dstr-binding/error/cls-expr-gen-meth-dflt.template b/src/dstr-binding/error/cls-expr-gen-meth-dflt.template
new file mode 100644
index 0000000000..e6bdc24765
--- /dev/null
+++ b/src/dstr-binding/error/cls-expr-gen-meth-dflt.template
@@ -0,0 +1,71 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/dstr-gen-meth-dflt-
+name: class expression method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var C = class {
+ *method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+var c = new C();
+
+assert.throws(/*{ error }*/, function() {
+ c.method();
+});
diff --git a/src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template b/src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
new file mode 100644
index 0000000000..75cd41fe88
--- /dev/null
+++ b/src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
@@ -0,0 +1,70 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/dstr-gen-meth-static-dflt-
+name: static class expression generator method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var C = class {
+ static *method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+
+assert.throws(/*{ error }*/, function() {
+ C.method();
+});
diff --git a/src/dstr-binding/error/cls-expr-meth-dflt.template b/src/dstr-binding/error/cls-expr-meth-dflt.template
new file mode 100644
index 0000000000..0f1465a2b1
--- /dev/null
+++ b/src/dstr-binding/error/cls-expr-meth-dflt.template
@@ -0,0 +1,69 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/dstr-meth-dflt-
+name: class expression method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var C = class {
+ method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+
+var c = new C();
+
+assert.throws(/*{ error }*/, function() {
+ c.method();
+});
diff --git a/src/dstr-binding/error/cls-expr-meth-static-dflt.template b/src/dstr-binding/error/cls-expr-meth-static-dflt.template
new file mode 100644
index 0000000000..e623115df5
--- /dev/null
+++ b/src/dstr-binding/error/cls-expr-meth-static-dflt.template
@@ -0,0 +1,67 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/dstr-meth-static-dflt-
+name: static class expression method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var C = class {
+ static method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+
+assert.throws(/*{ error }*/, function() {
+ C.method();
+});
diff --git a/src/dstr-binding/error/func-decl-dflt.template b/src/dstr-binding/error/func-decl-dflt.template
new file mode 100644
index 0000000000..ebadbe395e
--- /dev/null
+++ b/src/dstr-binding/error/func-decl-dflt.template
@@ -0,0 +1,46 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/function/dstr-dflt-
+name: function declaration (default parameter)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+function f(/*{ elems }*/ = /*{ vals }*/) {}
+
+assert.throws(/*{ error }*/, function() {
+ f();
+});
diff --git a/src/dstr-binding/error/func-expr-dflt.template b/src/dstr-binding/error/func-expr-dflt.template
new file mode 100644
index 0000000000..29c03f558e
--- /dev/null
+++ b/src/dstr-binding/error/func-expr-dflt.template
@@ -0,0 +1,45 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/function/dstr-dflt-
+name: function expression (default parameter)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var f = function(/*{ elems }*/ = /*{ vals }*/) {};
+
+assert.throws(/*{ error }*/, function() {
+ f();
+});
diff --git a/src/dstr-binding/error/gen-func-decl-dflt.template b/src/dstr-binding/error/gen-func-decl-dflt.template
new file mode 100644
index 0000000000..523836662b
--- /dev/null
+++ b/src/dstr-binding/error/gen-func-decl-dflt.template
@@ -0,0 +1,45 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/generators/dstr-dflt-
+name: generator function declaration (default parameter)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+function* f(/*{ elems }*/ = /*{ vals }*/) {}
+
+assert.throws(/*{ error }*/, function() {
+ f();
+});
diff --git a/src/dstr-binding/error/gen-func-expr-dflt.template b/src/dstr-binding/error/gen-func-expr-dflt.template
new file mode 100644
index 0000000000..2689749a29
--- /dev/null
+++ b/src/dstr-binding/error/gen-func-expr-dflt.template
@@ -0,0 +1,45 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/generators/dstr-dflt-
+name: generator function expression (default parameter)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var f = function*(/*{ elems }*/ = /*{ vals }*/) {};
+
+assert.throws(/*{ error }*/, function() {
+ f();
+});
diff --git a/src/dstr-binding/error/gen-meth-dflt.template b/src/dstr-binding/error/gen-meth-dflt.template
new file mode 100644
index 0000000000..d738d6b2d3
--- /dev/null
+++ b/src/dstr-binding/error/gen-meth-dflt.template
@@ -0,0 +1,52 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/dstr-gen-meth-dflt-
+name: generator method (default parameter)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var obj = {
+ *method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+
+assert.throws(/*{ error }*/, function() {
+ obj.method();
+});
diff --git a/src/dstr-binding/error/meth-dflt.template b/src/dstr-binding/error/meth-dflt.template
new file mode 100644
index 0000000000..e56ffd0b2c
--- /dev/null
+++ b/src/dstr-binding/error/meth-dflt.template
@@ -0,0 +1,49 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/dstr-meth-dflt-
+name: method (default parameter)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var obj = {
+ method(/*{ elems }*/ = /*{ vals }*/) {}
+};
+
+assert.throws(/*{ error }*/, function() {
+ obj.method();
+});
--
GitLab
From a969e853e7d8a43f2f1c7579d5a3e4fc1aa2a2fc Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Thu, 2 Jun 2016 14:51:51 -0400
Subject: [PATCH 2/8] Generate tests
---
.../dstr-dflt-ary-init-iter-close.js | 72 +++++++++++
.../dstr-dflt-ary-init-iter-get-err.js | 57 +++++++++
.../dstr-dflt-ary-init-iter-no-close.js | 72 +++++++++++
.../dstr-dflt-ary-name-iter-val.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-init.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-iter.js | 64 ++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-init.js | 70 +++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-iter.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-init.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-iter.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-init.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-iter.js | 70 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-val-null.js | 64 ++++++++++
...tr-dflt-ary-ptrn-elem-id-init-exhausted.js | 62 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 63 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 64 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 64 ++++++++++
...r-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 64 ++++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-hole.js | 58 +++++++++
...dstr-dflt-ary-ptrn-elem-id-init-skipped.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-throws.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-undef.js | 61 ++++++++++
...dflt-ary-ptrn-elem-id-init-unresolvable.js | 62 ++++++++++
...str-dflt-ary-ptrn-elem-id-iter-complete.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-done.js | 60 +++++++++
...str-dflt-ary-ptrn-elem-id-iter-step-err.js | 63 ++++++++++
...dstr-dflt-ary-ptrn-elem-id-iter-val-err.js | 74 +++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-val.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id-init.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id.js | 63 ++++++++++
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.../dstr-dflt-ary-ptrn-rest-init-id.js | 57 +++++++++
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.../dstr-dflt-ary-ptrn-rest-obj-id.js | 63 ++++++++++
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.../dstr-meth-dflt-ary-ptrn-rest-init-obj.js | 60 +++++++++
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.../dstr-meth-static-dflt-obj-ptrn-prop-id.js | 80 ++++++++++++
...meth-static-dflt-obj-ptrn-prop-obj-init.js | 86 +++++++++++++
...tatic-dflt-obj-ptrn-prop-obj-value-null.js | 75 ++++++++++++
...atic-dflt-obj-ptrn-prop-obj-value-undef.js | 75 ++++++++++++
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.../function/dstr-dflt-ary-init-iter-close.js | 72 +++++++++++
.../dstr-dflt-ary-init-iter-get-err.js | 59 +++++++++
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.../function/dstr-dflt-ary-name-iter-val.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-init.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-iter.js | 64 ++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-init.js | 70 +++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-iter.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-init.js | 65 ++++++++++
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.../dstr-dflt-ary-ptrn-elem-ary-rest-init.js | 67 ++++++++++
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.../dstr-dflt-ary-ptrn-elem-ary-val-null.js | 66 ++++++++++
...tr-dflt-ary-ptrn-elem-id-init-exhausted.js | 62 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 63 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 64 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 64 ++++++++++
...r-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 64 ++++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-hole.js | 58 +++++++++
...dstr-dflt-ary-ptrn-elem-id-init-skipped.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-throws.js | 57 +++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-undef.js | 61 ++++++++++
...dflt-ary-ptrn-elem-id-init-unresolvable.js | 64 ++++++++++
...str-dflt-ary-ptrn-elem-id-iter-complete.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-done.js | 60 +++++++++
...str-dflt-ary-ptrn-elem-id-iter-step-err.js | 65 ++++++++++
...dstr-dflt-ary-ptrn-elem-id-iter-val-err.js | 76 ++++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-val.js | 71 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id-init.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id.js | 63 ++++++++++
...str-dflt-ary-ptrn-elem-obj-prop-id-init.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-prop-id.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-null.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-undef.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elision-exhausted.js | 68 +++++++++++
.../dstr-dflt-ary-ptrn-elision-step-err.js | 73 +++++++++++
.../function/dstr-dflt-ary-ptrn-elision.js | 77 ++++++++++++
.../function/dstr-dflt-ary-ptrn-empty.js | 60 +++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elem.js | 84 +++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elision.js | 90 ++++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-empty.js | 73 +++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-rest.js | 69 +++++++++++
...-dflt-ary-ptrn-rest-id-elision-next-err.js | 59 +++++++++
.../dstr-dflt-ary-ptrn-rest-id-elision.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-rest-id-exhausted.js | 61 ++++++++++
...str-dflt-ary-ptrn-rest-id-iter-step-err.js | 70 +++++++++++
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.../function/dstr-dflt-ary-ptrn-rest-id.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-rest-init-ary.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-id.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-obj.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-ary.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-id.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-obj.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-rest-obj-id.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-rest-obj-prop-id.js | 70 +++++++++++
.../function/dstr-dflt-obj-init-null.js | 53 ++++++++
.../function/dstr-dflt-obj-init-undefined.js | 53 ++++++++
.../function/dstr-dflt-obj-ptrn-empty.js | 61 ++++++++++
.../dstr-dflt-obj-ptrn-id-get-value-err.js | 60 +++++++++
...str-dflt-obj-ptrn-id-init-fn-name-arrow.js | 62 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-class.js | 63 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-cover.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-fn.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-gen.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-skipped.js | 66 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-throws.js | 60 +++++++++
...dstr-dflt-obj-ptrn-id-init-unresolvable.js | 64 ++++++++++
.../dstr-dflt-obj-ptrn-id-trailing-comma.js | 56 +++++++++
.../function/dstr-dflt-obj-ptrn-list-err.js | 61 ++++++++++
.../dstr-dflt-obj-ptrn-prop-ary-init.js | 65 ++++++++++
...r-dflt-obj-ptrn-prop-ary-trailing-comma.js | 56 +++++++++
.../dstr-dflt-obj-ptrn-prop-ary-value-null.js | 55 +++++++++
.../function/dstr-dflt-obj-ptrn-prop-ary.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-prop-eval-err.js | 57 +++++++++
...str-dflt-obj-ptrn-prop-id-get-value-err.js | 62 ++++++++++
...dstr-dflt-obj-ptrn-prop-id-init-skipped.js | 78 ++++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init-throws.js | 60 +++++++++
...dflt-obj-ptrn-prop-id-init-unresolvable.js | 64 ++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init.js | 59 +++++++++
...tr-dflt-obj-ptrn-prop-id-trailing-comma.js | 60 +++++++++
.../function/dstr-dflt-obj-ptrn-prop-id.js | 59 +++++++++
.../dstr-dflt-obj-ptrn-prop-obj-init.js | 65 ++++++++++
.../dstr-dflt-obj-ptrn-prop-obj-value-null.js | 55 +++++++++
...dstr-dflt-obj-ptrn-prop-obj-value-undef.js | 55 +++++++++
.../function/dstr-dflt-obj-ptrn-prop-obj.js | 63 ++++++++++
.../dstr-dflt-ary-init-iter-close.js | 71 +++++++++++
.../dstr-dflt-ary-init-iter-get-err.js | 58 +++++++++
.../dstr-dflt-ary-init-iter-no-close.js | 71 +++++++++++
.../generators/dstr-dflt-ary-name-iter-val.js | 70 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-init.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-iter.js | 63 ++++++++++
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...str-dflt-ary-ptrn-elem-ary-elision-iter.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-init.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-iter.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-init.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-iter.js | 69 +++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-val-null.js | 65 ++++++++++
...tr-dflt-ary-ptrn-elem-id-init-exhausted.js | 61 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 62 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 63 ++++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 63 ++++++++++
...r-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 63 ++++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 63 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-hole.js | 57 +++++++++
...dstr-dflt-ary-ptrn-elem-id-init-skipped.js | 66 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-throws.js | 56 +++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-undef.js | 60 +++++++++
...dflt-ary-ptrn-elem-id-init-unresolvable.js | 63 ++++++++++
...str-dflt-ary-ptrn-elem-id-iter-complete.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-done.js | 59 +++++++++
...str-dflt-ary-ptrn-elem-id-iter-step-err.js | 64 ++++++++++
...dstr-dflt-ary-ptrn-elem-id-iter-val-err.js | 75 ++++++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-val.js | 70 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id-init.js | 62 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id.js | 62 ++++++++++
...str-dflt-ary-ptrn-elem-obj-prop-id-init.js | 72 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-prop-id.js | 72 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-null.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-val-undef.js | 65 ++++++++++
.../dstr-dflt-ary-ptrn-elision-exhausted.js | 67 ++++++++++
.../dstr-dflt-ary-ptrn-elision-step-err.js | 72 +++++++++++
.../generators/dstr-dflt-ary-ptrn-elision.js | 76 ++++++++++++
.../generators/dstr-dflt-ary-ptrn-empty.js | 59 +++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elem.js | 83 +++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elision.js | 89 ++++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-empty.js | 72 +++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-rest.js | 68 +++++++++++
...-dflt-ary-ptrn-rest-id-elision-next-err.js | 58 +++++++++
.../dstr-dflt-ary-ptrn-rest-id-elision.js | 64 ++++++++++
.../dstr-dflt-ary-ptrn-rest-id-exhausted.js | 60 +++++++++
...str-dflt-ary-ptrn-rest-id-iter-step-err.js | 69 +++++++++++
...dstr-dflt-ary-ptrn-rest-id-iter-val-err.js | 71 +++++++++++
.../generators/dstr-dflt-ary-ptrn-rest-id.js | 61 ++++++++++
.../dstr-dflt-ary-ptrn-rest-init-ary.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-id.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-obj.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-ary.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-id.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-obj.js | 55 +++++++++
.../dstr-dflt-ary-ptrn-rest-obj-id.js | 61 ++++++++++
.../dstr-dflt-ary-ptrn-rest-obj-prop-id.js | 69 +++++++++++
.../generators/dstr-dflt-obj-init-null.js | 52 ++++++++
.../dstr-dflt-obj-init-undefined.js | 52 ++++++++
.../generators/dstr-dflt-obj-ptrn-empty.js | 60 +++++++++
.../dstr-dflt-obj-ptrn-id-get-value-err.js | 59 +++++++++
...str-dflt-obj-ptrn-id-init-fn-name-arrow.js | 61 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-class.js | 62 ++++++++++
...str-dflt-obj-ptrn-id-init-fn-name-cover.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-fn.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-gen.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-skipped.js | 65 ++++++++++
.../dstr-dflt-obj-ptrn-id-init-throws.js | 59 +++++++++
...dstr-dflt-obj-ptrn-id-init-unresolvable.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-id-trailing-comma.js | 55 +++++++++
.../generators/dstr-dflt-obj-ptrn-list-err.js | 60 +++++++++
.../dstr-dflt-obj-ptrn-prop-ary-init.js | 64 ++++++++++
...r-dflt-obj-ptrn-prop-ary-trailing-comma.js | 55 +++++++++
.../dstr-dflt-obj-ptrn-prop-ary-value-null.js | 54 ++++++++
.../generators/dstr-dflt-obj-ptrn-prop-ary.js | 62 ++++++++++
.../dstr-dflt-obj-ptrn-prop-eval-err.js | 56 +++++++++
...str-dflt-obj-ptrn-prop-id-get-value-err.js | 61 ++++++++++
...dstr-dflt-obj-ptrn-prop-id-init-skipped.js | 77 ++++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init-throws.js | 59 +++++++++
...dflt-obj-ptrn-prop-id-init-unresolvable.js | 63 ++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init.js | 58 +++++++++
...tr-dflt-obj-ptrn-prop-id-trailing-comma.js | 59 +++++++++
.../generators/dstr-dflt-obj-ptrn-prop-id.js | 58 +++++++++
.../dstr-dflt-obj-ptrn-prop-obj-init.js | 64 ++++++++++
.../dstr-dflt-obj-ptrn-prop-obj-value-null.js | 54 ++++++++
...dstr-dflt-obj-ptrn-prop-obj-value-undef.js | 54 ++++++++
.../generators/dstr-dflt-obj-ptrn-prop-obj.js | 62 ++++++++++
1305 files changed, 100223 insertions(+)
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-close.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-get-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-no-close.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-name-iter-val.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-exhausted.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-step-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-empty.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elem.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elision.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-empty.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-rest.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-ary.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-obj.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-init-null.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-init-undefined.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-empty.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-get-value-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-skipped.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-throws.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-trailing-comma.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-list-err.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-init.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary.js
create mode 100644 test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-eval-err.js
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create mode 100644 test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
create mode 100644 test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-init-iter-close.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-init-iter-get-err.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-init-iter-no-close.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-name-iter-val.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elision-exhausted.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elision-step-err.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-elision.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-empty.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-id.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-ary.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-id.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-obj.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-id.js
create mode 100644 test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-init-null.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-init-undefined.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-empty.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-get-value-err.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-init-skipped.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-init-throws.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-list-err.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-init.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-eval-err.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-id.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-init.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
create mode 100644 test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-init-iter-close.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-init-iter-get-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-init-iter-no-close.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-name-iter-val.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elision-step-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-elision.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-empty.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-init-null.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-init-undefined.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-empty.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-throws.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-list-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
create mode 100644 test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj.js
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-close.js b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..4b307161f3
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = ([x] = iter) => {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-get-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..eaeb44fd7f
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var f = ([x] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-no-close.js b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..baf72d0f96
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = ([x] = iter) => {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-name-iter-val.js b/test/language/expressions/arrow-function/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..007b2a93a0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x, y, z] = [1, 2, 3]) => {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..c944f6b188
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([[x, y, z] = [4, 5, 6]] = []) => {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..bf660a34a1
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) => {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..772e84043c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = ([[,] = g()] = []) => {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..70a29eee1b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var f;
+f = ([[,] = g()] = [[]]) => {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..5f8c73b1bc
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var f;
+f = ([[] = function() { initCount += 1; return iter; }()] = []) => {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..59b29253e8
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = ([[] = function() { initCount += 1; }()] = [[23]]) => {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..39ac897434
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var f;
+f = ([[...x] = values] = []) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..fcae828b7a
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = ([[...x] = function() { initCount += 1; }()] = [values]) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..0bd2b6748f
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Nested array destructuring with a null value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var f = ([[x]] = [null]) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..1f1511bebc
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x = 23] = []) => {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..c5ab4cc6f3
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([arrow = () => {}] = []) => {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a46881b92c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([cls = class {}, xCls = class X {}] = []) => {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..930de09f94
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([cover = (function () {}), xCover = (0, function() {})] = []) => {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..80b41c2bad
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([fn = function () {}, xFn = function x() {}] = []) => {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..e346d06fd2
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([gen = function* () {}, xGen = function* x() {}] = []) => {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..22e088818c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x = 23] = [,]) => {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..9b59130d68
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = ([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) => {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..f995586e8a
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var f = ([x = (function() { throw new Test262Error(); })()] = [undefined]) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..0592bc6bc1
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x = 23] = [undefined]) => {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..106cb8994e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = ([ x = unresolvableReference ] = []) => {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..fb6bb8a0ab
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x] = []) => {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..b824a423da
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([_, x] = []) => {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..b60418872b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var f = ([x] = g) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..1a19f2ada9
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = ([x] = g) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..c466253804
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([x, y, z] = [1, 2, 3]) => {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..0014c7d938
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) => {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..1f80bc0a10
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) => {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..0d258dc3c0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) => {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..426db50f4b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) => {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..35d7bb1683
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Nested object destructuring with a null value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = ([{ x }] = [null]) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..6b5a2e2442
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = ([{ x }] = []) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..eaa6898ad5
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Elision accepts exhausted iterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var f;
+f = ([,] = iter) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..4d7f207220
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var f = ([,] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..11c566aa03
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Elision advances iterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = ([,] = g()) => {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-empty.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..bcca029c1a
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = ([] = iter) => {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..8e5d7be5ea
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ([...[x, y, z]] = [3, 4, 5]) => {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..fc32bf2576
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an elision (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = ([...[,]] = g()) => {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..0ee5addff0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = ([...[]] = iter) => {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..f89170ab25
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing a rest element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = ([...[...x]] = values) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..e0c7bdf585
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Rest element following elision elements (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var f = ([, ...x] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..b74b48d34e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element following elision elements (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var f;
+f = ([ , , ...x] = values) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..eb4a970668
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var f;
+f = ([, , ...x] = [1, 2]) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..74f5feb72c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var f = ([...x] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..09824400eb
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = ([...x] = iter) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..e29d45297e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Lone rest element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = ([...x] = values) => {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..f29bdba84e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...[ x ] = []] = []) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..eb7e99091c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...x = []] = []) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..1b0a57bcc5
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...{ x } = []] = []) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..d3a812c951
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...[x], y] = [1, 2, 3]) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..2fb75b7f77
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...x, y] = [1, 2, 3]) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..8b16b1f347
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...{ x }, y] = [1, 2, 3]) => {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..e7f805fbe1
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an object binding pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...{ length }] = [1, 2, 3]) => {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..2b8a3acb7c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Rest element containing an object binding pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = ([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) => {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-init-null.js b/test/language/expressions/arrow-function/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..ad8cb90af5
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-init-null.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = ({} = null) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-init-undefined.js b/test/language/expressions/arrow-function/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..07cab579d3
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = ({} = undefined) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-empty.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..397246c92a
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var f;
+f = ({} = obj) => {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..7ada409523
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = ({ poisoned } = poisonedProperty) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..b4b51ea40f
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ arrow = () => {} } = {}) => {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..af4e0a53e0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ cls = class {}, xCls = class X {} } = {}) => {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..851b36cdb1
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ cover = (function () {}), xCover = (0, function() {}) } = {}) => {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..0f9e21fc64
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ fn = function () {}, xFn = function x() {} } = {}) => {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..26210d7445
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ gen = function* () {}, xGen = function* x() {} } = {}) => {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..007cc7849f
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = ({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) => {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..207ea5c9bb
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = ({ x = thrower() } = {}) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..f325728b2b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = ({ x = unresolvableReference } = {}) => {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..eba3658f1c
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x, } = { x: 23 }) => {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-list-err.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..a20d7c3247
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = ({ a, b = thrower(), c = ++initCount } = {}) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..2099d9bdfd
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ({ w: [x, y, z] = [4, 5, 6] } = {}) => {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..0497319adf
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x: [y], } = { x: [45] }) => {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..847d6d3a81
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = ({ w: [x, y, z] = [4, 5, 6] } = { w: null }) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..50aa1593c8
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) => {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..a3e162b057
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = ({ [thrower()]: x } = {}) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..ff4f06cf43
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = ({ poisoned: x = ++initEvalCount } = poisonedProperty) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..160e36e227
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = ({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) => {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..d4c6a88517
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = ({ x: y = thrower() } = {}) => {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..9f4fc6e8ee
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = ({ x: y = unresolvableReference } = {}) => {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..c5457d4cf0
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x: y = 33 } = { }) => {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..c821daed0b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x: y, } = { x: 23 }) => {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..1a0cd7c06e
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Binding as specified via property name and identifier (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = ({ x: y } = { x: 23 }) => {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..8556606597
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) => {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..5a759a5c54
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..9f0aa5b63b
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = ({ w: { x, y, z } = undefined } = { }) => {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..eecdcf3f47
--- /dev/null
+++ b/test/language/expressions/arrow-function/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/arrow-function-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (arrow function expression (default parameter))
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) => {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..5ec3fbf266
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..e10e935773
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var C = class {
+ *method([x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5b8eb1dc9e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..1d776ca4ee
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..70d1e1aa8a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..8c1b836d26
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..7de1fc0011
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..26b9bf7849
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var C = class {
+ *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..c9ab70830c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var C = class {
+ *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..b875facc4c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..a83bcae854
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var C = class {
+ *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..618957ca5e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..d5fd9e35a9
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var C = class {
+ *method([[x]] = [null]) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..7b746fb3b0
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..be56485759
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a56a220167
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..1fb2a704cb
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..89ac7ba12d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..5340f5067d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..ee357d99d1
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..c53995899a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..2a2cee1105
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var C = class {
+ *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..f230d56376
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..348d8bef41
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ *method([ x = unresolvableReference ] = []) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..fb47225655
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..b4cc4ff6fa
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..5442af3b35
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var C = class {
+ *method([x] = g) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..7f668a669c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,101 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ *method([x] = g) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..e1d22ac8aa
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..9bcdf7d3f1
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..95f4ab5280
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..ac92abdb3f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..b3ee8ae3cf
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..694a464f73
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ *method([{ x }] = [null]) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..0030d16177
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ *method([{ x }] = []) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..36949a0289
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var C = class {
+ *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..cf54109d27
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var C = class {
+ *method([,] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..af13c56752
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,102 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..26ac515f73
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..04dce5bcdb
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,109 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..90bf9c7c3e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,115 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..a38c651dbc
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..46bff62018
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..18172ac3f7
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var C = class {
+ *method([, ...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..948f050d56
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var C = class {
+ *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..44e6da0cb8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..add399581e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var C = class {
+ *method([...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..706d49fbb5
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ *method([...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..2518d14f7e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Lone rest element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..2315149861
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..f83d0e588b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..55ccba416a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..80070d8f03
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..da97778617
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..f567a2a913
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..260d91c083
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..732d662e49
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..1aff6a1410
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ *method({} = null) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-undefined.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..b69a7a96d1
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ *method({} = undefined) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..02e1770e81
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var C = class {
+ *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..5800d000b8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ *method({ poisoned } = poisonedProperty) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..22cbe3b001
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..c7a2a2d4d2
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..86f7db7941
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..c0b5a7a7d2
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..eb1df5b800
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..5d45cdaabe
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..2aa4c95429
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ *method({ x = thrower() } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..567c0ecddb
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ *method({ x = unresolvableReference } = {}) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..1b22895006
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..beb528d28e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..ca3ff9ba3c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..ab1a9ae881
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..c874bfd3bf
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..a3e2c0edc1
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..4ee40778f8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ *method({ [thrower()]: x } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..b06248f4f6
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..ebfa2c6aa0
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,103 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..76e5e738cc
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ *method({ x: y = thrower() } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..a93b613ec7
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ *method({ x: y = unresolvableReference } = {}) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..dc090c89ea
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..a42a191280
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..6eabd4be86
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..473f6185e3
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..7e480412ab
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..c53dcdd371
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ *method({ w: { x, y, z } = undefined } = { }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..9872afb5d6
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..b781bb7e1a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ static *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..89d07e3dda
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var C = class {
+ static *method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5748e6082a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ static *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..dffc01152b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..6717d46c78
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..27b7467eda
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..b0a3866a69
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..56ed0ddfab
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..61af0230de
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var C = class {
+ static *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..2b4492bb4b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ static *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..4f89c895f6
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var C = class {
+ static *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..d6575d32b3
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ static *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..ab30c0295f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Nested array destructuring with a null value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var C = class {
+ static *method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..f895f84408
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..0de7c850ce
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..c3b75da5fc
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..96a0d2af20
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..77cec8416b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..146f538f3d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..b006b2d714
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..40d6954590
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..8bed6e5d2b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var C = class {
+ static *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..41b93806ef
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..1c9202de2e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static *method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..897c2a023a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..2a5e4615c8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..4b40f416c8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var C = class {
+ static *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..979439b46f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ static *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..b5ed63acc8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..0bb492c796
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..1a0459234e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..4c98a45189
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..436c528725
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..01068ecfbf
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a null value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ static *method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..c5701430c2
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ static *method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..1da4f38388
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var C = class {
+ static *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..5c5ae10c2e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var C = class {
+ static *method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..b86cbe98e3
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,102 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..ee27b3244d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ static *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..27a0f206c9
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,109 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..a7e2cb735d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,115 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..fcc26dd6e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ static *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..d1004dedcf
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ static *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..1634e689b6
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var C = class {
+ static *method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..646ca4f0ae
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var C = class {
+ static *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..69d79e5ac4
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..9c5815d618
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var C = class {
+ static *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..aa351c7dc5
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ static *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..f6cc057b57
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ static *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..4a391cacce
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..dbc1fc0a0c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..671fd4247f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..a902340322
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..b709bb2404
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..07add9b7ee
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..b4d48e8924
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..4d3741bc65
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-null.js
new file mode 100644
index 0000000000..3644d4e90f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ static *method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-undefined.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..6396ae7403
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-init-undefined.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ static *method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..54b92d2a1f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var C = class {
+ static *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..64fb0dde5d
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ static *method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..5737b12bd8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..6f343be628
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..0cd868faeb
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..79d4f11b5f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..652f36dc28
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..9afc1abf96
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..f827603e03
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static *method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..08ed1c3c48
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static *method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..3ca13d770b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..933841417c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..bff15eda57
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..6022779eac
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..7e87084d8b
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..53992c64e7
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..957abff41f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static *method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..d2a64a431c
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ static *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..e1f7c98718
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,103 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..47d1612bc4
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static *method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..6c7272f1a8
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static *method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..d4312c0ba0
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..0ec19be6f4
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..3c46c08466
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..abc8d4c86e
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..3d4ae8b65a
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..ad4e55460f
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static *method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..5f1da2e141
--- /dev/null
+++ b/test/language/expressions/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..4f8d734a78
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-get-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..7f7d334b28
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var C = class {
+ method([x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..a1f911c269
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..93c6528881
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..dd721c9542
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..ae219f8bea
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..62f5527d34
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..74bc12df53
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var C = class {
+ method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..80d63fec64
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var C = class {
+ method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..d54438a6bb
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..0d6939ed2f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var C = class {
+ method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..386a893b6d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..ce8dd79337
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var C = class {
+ method([[x]] = [null]) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..a70eb23993
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..d72c43292c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..e04cea08d0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..4511ea6e57
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..4c3eb06ddd
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a4d6571b64
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..aa3c93ae7e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..3c7f8e025b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..f250556b80
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var C = class {
+ method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..7f68be7eb8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..c6dc329fb6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ method([ x = unresolvableReference ] = []) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..8f28a8b739
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..dc85571e41
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..fa9c705add
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var C = class {
+ method([x] = g) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..6a26ea83a9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ method([x] = g) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..32cd2dd411
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..5b2288f612
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..72b011bee4
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..063b40c76e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..84f11026d0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..effbe693eb
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ method([{ x }] = [null]) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..f5dbd72624
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ method([{ x }] = []) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..e77ba40411
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var C = class {
+ method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..df36675334
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var C = class {
+ method([,] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..d3ef75c8cd
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..ff630bf270
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..0831478c18
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,106 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..8c7d982d7c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,112 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..8aeaabe213
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..95cef0266f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..05070994ee
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var C = class {
+ method([, ...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..5f87669e17
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var C = class {
+ method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..71317f95ef
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var C = class {
+ method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..f745fe8eb8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var C = class {
+ method([...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..c7fbaa69d3
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ method([...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..f6e995cd32
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Lone rest element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..4f293e0afa
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..341bdf9f09
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..73c2d5a26a
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..f29a418331
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..4fc4c49e5d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..dd50423693
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..7c1930e2d6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..de108a6515
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-init-null.js b/test/language/expressions/class/dstr-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..e7f1a5b6e1
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-init-null.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ method({} = null) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-init-undefined.js b/test/language/expressions/class/dstr-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..0e1d427ab0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ method({} = undefined) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..ac14023bc8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var C = class {
+ method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..619606d6f0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ method({ poisoned } = poisonedProperty) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..0662f03000
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ba1e077fb5
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..273f6b73f7
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..2cda3ab551
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..54bac900ee
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..551d5dedb9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..49c37658db
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ method({ x = thrower() } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..0ffb1f121e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ method({ x = unresolvableReference } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..bbdab81371
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-list-err.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..7c12126ed6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..17d86c6590
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..be61b0be2f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..f722c1d81b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..3d6a80d2e7
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..59a1aa73b0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ method({ [thrower()]: x } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..05fa3149d6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..33693c6d99
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..9636632a65
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ method({ x: y = thrower() } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..0f3a519b0c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ method({ x: y = unresolvableReference } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..51f7c12be4
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..3653a3c831
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..0f6fea520c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..a26fa513e8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..694c3c01ea
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..53b387028d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..16769c24ce
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..51f7f4df12
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ static method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-get-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..bbe954a8a8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var C = class {
+ static method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..971960e546
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var C = class {
+ static method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..3acd97eccb
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..eb85c0c26c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..ef7df19026
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..1f46ed2603
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..648aa58717
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..8449f22212
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var C = class {
+ static method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..44858ced43
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ static method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..31ad10f7e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var C = class {
+ static method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..20c54d48d5
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var C = class {
+ static method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..368e60d36d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Nested array destructuring with a null value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var C = class {
+ static method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..0b6b97ad0d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..6c77de3398
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a0288aa2fe
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..ffc0277318
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..088e6c7c17
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..49fe105423
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..2839ee832f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..e68650c9fb
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..7fa8ea2d5d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var C = class {
+ static method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..ef4241839e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..7f500350a4
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..687564366e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..48f9a726a0
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..f925788b9c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var C = class {
+ static method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..281e6af2b3
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ static method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..e938f65da8
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..445823fe6d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..80e1213d58
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..580f4ac51e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..405e7399f9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..b80eb2ae8f
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a null value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ static method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..b1dee6ac98
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var C = class {
+ static method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..49d6a447c6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var C = class {
+ static method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..79de22c30b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var C = class {
+ static method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..b98061594e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..a8b7fa9153
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ static method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..f99f77b04c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,106 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..fa81d3a2fc
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,112 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var C = class {
+ static method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..84a9738486
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var C = class {
+ static method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..e480bd8a8b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ static method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..e340d45f07
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var C = class {
+ static method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..34d894a491
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var C = class {
+ static method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..f36f17d5ae
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..7082b7b14b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var C = class {
+ static method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..fa719169e1
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var C = class {
+ static method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..fc764301a9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var C = class {
+ static method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..f0c231c163
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..a415405973
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..f2a41ee688
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..0c60477e8b
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..be3b2675e3
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..9405e2430e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..7af8a83a42
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..103feca683
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-init-null.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-init-null.js
new file mode 100644
index 0000000000..ed6abab839
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-init-null.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ static method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-init-undefined.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..85849961b9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-init-undefined.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var C = class {
+ static method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..bb6184f5a9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var C = class {
+ static method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..e33a08f45d
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ static method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..18752865cc
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..fb2f137356
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..1947a05f46
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..260659b140
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..fd034e6d3c
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..dad3daca54
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..fcbbae5a42
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..1c7e7f44e4
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..bf44827876
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-list-err.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..d7f55986bd
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..67d6dfc5e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..c48b848e46
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..dc267a1c4a
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..99d213df75
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..6c2f4d41c7
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..b5cde6af86
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var C = class {
+ static method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..65bc9f2646
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var C = class {
+ static method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..61ec0cfaa2
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var C = class {
+ static method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..9518c430b6
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var C = class {
+ static method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..60c7d56c00
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..42abd6e02a
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..b3fa74ac92
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..dffcbf64fd
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..f2bc4be76e
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..48d8933af7
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var C = class {
+ static method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..48c7c576a1
--- /dev/null
+++ b/test/language/expressions/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-init-iter-close.js b/test/language/expressions/function/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..61ec69fe8d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = function([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-init-iter-get-err.js b/test/language/expressions/function/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..acac271e51
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var f = function([x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-init-iter-no-close.js b/test/language/expressions/function/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..e4ff6e584d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = function([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-name-iter-val.js b/test/language/expressions/function/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..5c38fee634
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..568ead28aa
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..89663d1062
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..b34692e2d6
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..f7f0362499
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var f;
+f = function([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..f8103883b3
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var f;
+f = function([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..f254bc9c69
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = function([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..edf0315712
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var f;
+f = function([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..34303bf126
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = function([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..39a2793d66
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Nested array destructuring with a null value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var f = function([[x]] = [null]) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..469020ee4f
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..8f5350408b
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..3cbe731bb0
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..2bceb488f5
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..36115b5afd
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..3bf148a168
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..28fd5e4d42
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..7822041a8a
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..135e42ec5c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var f = function([x = (function() { throw new Test262Error(); })()] = [undefined]) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..a8a5783dbf
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..997715249a
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function([ x = unresolvableReference ] = []) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..0973207f3f
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..f308b8a522
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..784b52b19d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var f = function([x] = g) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..f2a41b220b
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = function([x] = g) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..bf4ec1b4f1
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..50be24e8fd
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..e6154875bf
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..d25433b1a0
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..a4347ae540
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..da576a62de
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Nested object destructuring with a null value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = function([{ x }] = [null]) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..fdf9e2ca38
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = function([{ x }] = []) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..01ccef9c51
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Elision accepts exhausted iterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var f;
+f = function([,] = iter) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..a64145b66c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var f = function([,] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-elision.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..f176ccdcc2
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Elision advances iterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-empty.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..81450e9a7b
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = function([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..692dcf2e06
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..8c7ec5482b
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an elision (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..11a9a2fba4
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = function([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..c2270afc0d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing a rest element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = function([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..b9376e410e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Rest element following elision elements (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var f = function([, ...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..21401ec829
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element following elision elements (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var f;
+f = function([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..91ddab3d91
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var f;
+f = function([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..4e348580b2
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var f = function([...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..2559daa84e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = function([...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..63bf1a58f2
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Lone rest element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = function([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..e2535ee958
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..3f913f8821
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..7b9879f061
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..51e0acb07e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..8f448f18ae
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..957dc771d5
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..5ffc1767b6
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..aeedc5c860
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-init-null.js b/test/language/expressions/function/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..7dadf07082
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-init-null.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = function({} = null) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-init-undefined.js b/test/language/expressions/function/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..f022a53f9d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = function({} = undefined) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-empty.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..9b6f547e5e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var f;
+f = function({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..4c77e0730d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = function({ poisoned } = poisonedProperty) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..c4e977a14e
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..80638d75e7
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..daf709642c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..8b01f2e7db
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..08add1ee82
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..5b92ad43f4
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..60c01f2173
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function({ x = thrower() } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..2c21026936
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function({ x = unresolvableReference } = {}) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..ea34c1388d
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-list-err.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..c36d7edc34
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function({ a, b = thrower(), c = ++initCount } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..9fb238e644
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..238c09e3f9
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..0d103e4670
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..ac572cfde4
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..104d38db44
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function({ [thrower()]: x } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..3493f4075c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = function({ poisoned: x = ++initEvalCount } = poisonedProperty) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..2f2ff162af
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..e1f52790a2
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function({ x: y = thrower() } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..23fd0eea98
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function({ x: y = unresolvableReference } = {}) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..b312d6335a
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..84005d96df
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..cc4addabe3
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Binding as specified via property name and identifier (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..991f1252e0
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..98799968eb
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..6f2641d15c
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function({ w: { x, y, z } = undefined } = { }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..bc199a1265
--- /dev/null
+++ b/test/language/expressions/function/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (function expression (default parameter))
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-init-iter-close.js b/test/language/expressions/generators/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..7d1631f70a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = function*([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-init-iter-get-err.js b/test/language/expressions/generators/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..eb15ac9b40
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var f = function*([x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-init-iter-no-close.js b/test/language/expressions/generators/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5d81c1bf4f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var f;
+f = function*([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-name-iter-val.js b/test/language/expressions/generators/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..944761d578
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..6916f60479
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..5dcf7c2cc0
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..592ed62c6d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function*([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..a607059e7a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var f;
+f = function*([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..ed0046f243
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var f;
+f = function*([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..d37226113f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = function*([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..fd6a3f4784
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var f;
+f = function*([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..13003c7c88
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var f;
+f = function*([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..cb75906384
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Nested array destructuring with a null value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var f = function*([[x]] = [null]) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..72e82b7901
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..df14df54e1
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..2e1f87ddb4
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..01ea45a27f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..28e4c130d0
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..0f86aa51ee
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..bb1b7d1090
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..ba78f7213d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function*([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..d53269e637
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var f = function*([x = (function() { throw new Test262Error(); })()] = [undefined]) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..1c08f8df0a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..31d6c57a23
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function*([ x = unresolvableReference ] = []) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..3e3a2e9279
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..f411e1e4e9
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..b04aaa0a90
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var f = function*([x] = g) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..790a8fefa2
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = function*([x] = g) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..74f9122e70
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..d8b4d188cd
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..1913c0915d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..c5971e7173
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..1883135f4c
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..7e21b8b34b
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Nested object destructuring with a null value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = function*([{ x }] = [null]) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..8514cb8df0
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var f = function*([{ x }] = []) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..b760fc16b8
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Elision accepts exhausted iterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var f;
+f = function*([,] = iter) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..e563fffc7e
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var f = function*([,] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..3e2d66a56d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Elision advances iterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function*([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-empty.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..116dd47f1e
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = function*([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..011b8ff709
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..43ec6865a7
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an elision (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var f;
+f = function*([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..b5f40f95c8
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var f;
+f = function*([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..4d5334cf2c
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing a rest element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = function*([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..83f38f8ed3
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Rest element following elision elements (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var f = function*([, ...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..7c462f574f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element following elision elements (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var f;
+f = function*([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..89a1566103
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var f;
+f = function*([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..10fabaf8fe
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var f = function*([...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..4128e7b732
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var f = function*([...x] = iter) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..fdc046cfb2
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Lone rest element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var f;
+f = function*([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..820d7a0f69
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..9c5eada2b5
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..66e9c0440d
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..94c31adaad
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..2b0bb88a00
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..d7410ed621
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..9bf74f72bb
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..0df9cd4e21
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function*([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-init-null.js b/test/language/expressions/generators/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..b7e66b3f1a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-init-null.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = function*({} = null) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-init-undefined.js b/test/language/expressions/generators/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..89a1deefaa
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var f = function*({} = undefined) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-empty.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..cb59ebe21a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var f;
+f = function*({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..aae92df13e
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = function*({ poisoned } = poisonedProperty) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..7b68171e5b
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ede0ce051e
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..761d917844
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b1191972b0
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a5815cdc46
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..849ad490c2
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function*({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..58193b66aa
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function*({ x = thrower() } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..f5fe5074dd
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function*({ x = unresolvableReference } = {}) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..5185cd6de3
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-list-err.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..2a8aef33ef
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function*({ a, b = thrower(), c = ++initCount } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..73b40f601b
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..ff5184c4dc
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..efd1c8ed34
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function*({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..91c69d990b
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..b1ffb43ebc
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function*({ [thrower()]: x } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..6a13794dcc
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var f = function*({ poisoned: x = ++initEvalCount } = poisonedProperty) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..3740ccf3ce
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var f;
+f = function*({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..70badd6c70
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var f = function*({ x: y = thrower() } = {}) {};
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..6f2ee07c4a
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var f = function*({ x: y = unresolvableReference } = {}) {};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..51c4d71130
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..d5bbb481bb
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..b29981eb3c
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Binding as specified via property name and identifier (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..ee8e5221fd
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..2d1c92683f
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..2e69443b48
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var f = function*({ w: { x, y, z } = undefined } = { }) {};
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..71167c9a6c
--- /dev/null
+++ b/test/language/expressions/generators/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (generator function expression (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-close.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..c17349e261
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var obj = {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-get-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..6508245309
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var obj = {
+ *method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..9874fa38f6
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var obj = {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-name-iter-val.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..2c73ff64b4
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..c49eeff539
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..112aefd8dc
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..db0809fc64
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..f6a39a69bb
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var obj = {
+ *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..fa8cc68cb0
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var obj = {
+ *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..da2aff3934
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var obj = {
+ *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..6b1d6ba122
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var obj = {
+ *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..fe6b182df1
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var obj = {
+ *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..f957343695
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var obj = {
+ *method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..0217ce2536
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..6071504fcc
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..7852dc8156
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..255a97d8f4
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b047d963ce
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..2c0b110277
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..79587da441
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..70ee82784a
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..bc7dc3c020
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var obj = {
+ *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..55591fb3ed
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..70200e550b
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ *method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..8f67d5fc47
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..7bd2493e40
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..3c84a98a81
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var obj = {
+ *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..5bb89b278f
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var obj = {
+ *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..a6af5ecc24
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..7954d02670
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..5660a67064
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..9ee29e36e1
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..c34a744275
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..a2a380fab4
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var obj = {
+ *method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..fb4be8e848
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var obj = {
+ *method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..d33d0d77f0
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Elision accepts exhausted iterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var obj = {
+ *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..99790d0dea
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var obj = {
+ *method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..ce2856ff0d
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Elision advances iterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..d97c5f0041
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var obj = {
+ *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..ed92312f10
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..264e1e8293
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,97 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an elision (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..86ab5680c6
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var obj = {
+ *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..18719a9c0c
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing a rest element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var obj = {
+ *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..91453619b4
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var obj = {
+ *method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..b413c87fc1
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element following elision elements (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var obj = {
+ *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..f56505d66c
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..cd7ad05b89
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var obj = {
+ *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..7df0ee2c46
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var obj = {
+ *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..166cdef523
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Lone rest element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var obj = {
+ *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..fc64797f94
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..ef7048267e
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..14875b7428
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..0901fdc1ce
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..bbe133b41c
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..0ba6470e0e
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..72cd270b74
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..29bc12f334
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..1a84aa8163
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-null.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var obj = {
+ *method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-undefined.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..bcfb0b1566
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var obj = {
+ *method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..78e1374dc0
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var obj = {
+ *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..3178fb93f2
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var obj = {
+ *method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..d24b86b971
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..1f2cb2aa25
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..11e3d4740e
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..d4b56a08e5
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..b94afac017
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..f9daee5fea
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..d1f4546e20
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ *method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..3e162bd434
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ *method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..898ff96ffd
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-list-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..e67a41dae1
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..e954fca517
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..5ecb5f2dff
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..cfcf333dfd
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..93a94bb734
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..1a42d8dc48
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ *method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..5ef7dab0cf
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var obj = {
+ *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..fc13547f05
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..3bc55df00d
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ *method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..6be5da422a
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ *method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..d7cab302b9
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..9e4fe14b86
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..25b2a9b67d
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Binding as specified via property name and identifier (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..2896eaf42b
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..5f195983f3
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..650e69d6f3
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ *method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..760137a722
--- /dev/null
+++ b/test/language/expressions/object/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (generator method (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-close.js b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..4e92ae28ce
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var obj = {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-get-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..4167ace3f9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+var obj = {
+ method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..18d82d81a9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+var obj = {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-name-iter-val.js b/test/language/expressions/object/dstr-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..ed6412c684
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..9a034968df
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..2424d25562
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..139c79b4e0
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..c09df91888
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+var obj = {
+ method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..a4271ebe28
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+var obj = {
+ method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..2c5ae3f4c5
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+var obj = {
+ method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..211e239477
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+var obj = {
+ method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..68ea80d3b4
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+var obj = {
+ method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..29b45ef301
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+var obj = {
+ method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..c899e32c42
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..e6612a3b85
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..2dc0802506
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..074c0f686e
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b6293cb063
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..e035e7cf5a
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..f1887d0378
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..20bca78715
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..347c0c9622
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+var obj = {
+ method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..cff07467d7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..fcd7e7eccf
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..34f91b07c7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..70c39753e6
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..1a72354afc
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+var obj = {
+ method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..b8191868a7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var obj = {
+ method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..6c452803a4
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..6e9dced290
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..c0a88a767d
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..a48b46df10
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..fc5d3a3256
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..8fce74b23a
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var obj = {
+ method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..6b404d59cf
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+var obj = {
+ method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..99f056699f
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+var obj = {
+ method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..ff5ef6865b
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+var obj = {
+ method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..c896bb64d9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Elision advances iterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..306c948104
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var obj = {
+ method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..8d064b332e
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..94dfcb97ca
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an elision (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+var obj = {
+ method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..fc5c46e316
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+var obj = {
+ method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..d49d8ce033
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing a rest element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var obj = {
+ method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..8958518bb2
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Rest element following elision elements (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+var obj = {
+ method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..bde5be7ace
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element following elision elements (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+var obj = {
+ method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..6b19dafbb2
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+var obj = {
+ method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..d13f8bddc9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+var obj = {
+ method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..66218f6282
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+var obj = {
+ method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..08aa482ea9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Lone rest element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+var obj = {
+ method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..9e929a4f9f
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..56edab5975
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..21c0c22844
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..a52f4769a9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..5fe8826d5e
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..6dc54a3411
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..cf7b89c40c
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..f2853d38e7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-init-null.js b/test/language/expressions/object/dstr-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..14922afb94
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-init-null.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var obj = {
+ method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-init-undefined.js b/test/language/expressions/object/dstr-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..25760a9473
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+var obj = {
+ method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..e93ddf6fb0
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+var obj = {
+ method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..ba50328a36
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var obj = {
+ method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..f427553a19
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..6ea8850334
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..ee75a23017
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..d3cb03e408
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..5cd76dd549
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..e23f8be8c5
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..1ee6b3937a
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..6bc5191979
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..dbf4dd62d6
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-list-err.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..6db684bb73
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..aa0c777380
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..10e8b68b9f
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..d1b6ae7c86
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..abab62f63a
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..3b88c94711
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..5d18f9c6f9
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+var obj = {
+ method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..30154e8990
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+var obj = {
+ method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..d07a459f44
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+var obj = {
+ method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..25591b4804
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+var obj = {
+ method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..f380475e70
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..065ca04442
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..bf82246b82
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..43236d4d94
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..4f432d7d13
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..13edb25fc5
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var obj = {
+ method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ obj.method();
+});
diff --git a/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..3e36fd72a7
--- /dev/null
+++ b/test/language/expressions/object/dstr-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (method (default parameter))
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..4d9916385a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..990850a42b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+class C {
+ *method([x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..c4513294fc
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..614c63cec5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..a451f70ce2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..264664f22c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..4929f77911
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..42679bed28
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+class C {
+ *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..16d76875c7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+class C {
+ *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..a9278583c4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..698692b5ea
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+class C {
+ *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..d8866ef973
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..397f660958
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+class C {
+ *method([[x]] = [null]) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..6ed7902b3e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..3e2d646a17
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..3d993f32f3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..4b224eb5d5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..be878d1fd4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a57729770f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..f0abc3340c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..c5be49d674
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..5d7f17814c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+class C {
+ *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..5d78bb294b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..4deb19958f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ *method([ x = unresolvableReference ] = []) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..df16b83fd4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..160066037b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..3993aafd84
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+class C {
+ *method([x] = g) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..4ed92cc891
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ *method([x] = g) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..aa886dfb03
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..b149df6b4b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..2404b1a5e2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..5a7174f0d6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..307e8f716c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..c47247518b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ *method([{ x }] = [null]) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..ab9cfe873a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ *method([{ x }] = []) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..583ccd71f2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+class C {
+ *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..b39cc0ffa4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+class C {
+ *method([,] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..2b30427238
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..09cb65b879
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..5c4624342d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,107 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..6d22c8fe8f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,113 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..312248079a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..fe29b68ede
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..6abc67381e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+class C {
+ *method([, ...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..343145947f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+class C {
+ *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..cfaf8ab6d2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+class C {
+ *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..1ab4a9f499
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+class C {
+ *method([...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..a54bb04edf
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ *method([...x] = iter) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..8ebe8caca7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Lone rest element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..5cabe9a492
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..b915845505
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..142e800d9a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..2d9fb7cbf3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..5492d74aec
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..fc802c0f8d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..91c799be32
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..112830090b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-init-null.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..b56c1afa56
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-init-null.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ *method({} = null) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-init-undefined.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..3fdb2a2277
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ *method({} = undefined) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..b1f09a2674
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+class C {
+ *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..a57087e8fb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ *method({ poisoned } = poisonedProperty) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..e6a99275dd
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..46aa7918fa
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..bea1d40ffd
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e041b88c36
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..1b202b57f4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..b37d0b7e4b
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..ea00ae2aca
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ *method({ x = thrower() } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..041425052c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ *method({ x = unresolvableReference } = {}) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..0d2be4c769
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..1d7ef5922a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..2ebe8b030e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..e05985d3ec
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..57ec5d5cdd
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..14485d0dc7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..019a247989
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ *method({ [thrower()]: x } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..b24624bb5f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..e2aaa500dd
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,101 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..105c76a4d5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ *method({ x: y = thrower() } = {}) {}
+};
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..abad384f72
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ *method({ x: y = unresolvableReference } = {}) {}
+};
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..ebbcd496e8
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..02d1d9e588
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..2999a988c5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..8ee3d8341c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..acc6a814e3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..472e7a211a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ *method({ w: { x, y, z } = undefined } = { }) {}
+};
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..ad03ed484f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..e6f8e72dea
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ static *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..d5417e4b3f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+class C {
+ static *method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..16e1ca43a7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ static *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..99efc01cc5
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..ceb7a1f133
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..06e15c4688
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..54d83012c9
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..33056cd443
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+class C {
+ static *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..407aa1c06e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+class C {
+ static *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..f644b0d648
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ static *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..c2fbe5573e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+class C {
+ static *method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..60f44a6adb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ static *method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..feab2bd52a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Nested array destructuring with a null value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+class C {
+ static *method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..b9d89f3feb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..af71786720
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..05d8fa2bf4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..37efaf04a3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b54f0c961d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..80835c85b4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..32d4cabcb6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..8d141b7777
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static *method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..ff4f0b188f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+class C {
+ static *method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..759006d0ad
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..5d1b958b80
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static *method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..fb97f6cd28
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..d8915ed63e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..6313d6eb5c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+class C {
+ static *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..4cfa6b8fee
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ static *method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..8034693be0
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..5752ac8265
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..b4292842ca
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..5f22ddd1de
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..74a98c85d6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..fd78cea8e8
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a null value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ static *method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..3f3385b702
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ static *method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..5e58e7a430
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+class C {
+ static *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..cfbc6d536d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+class C {
+ static *method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..ae16773145
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,100 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..0d9e4d523e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ static *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..511012222f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,107 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..e9b443bc88
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,113 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..be9eedcf90
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ static *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..bc515d1d50
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ static *method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..aba507c0ed
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+class C {
+ static *method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..e005f4e036
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+class C {
+ static *method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..1f1e458902
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+class C {
+ static *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..b804c5453c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+class C {
+ static *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..fb73c8980f
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ static *method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..7cbf15d5ca
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ static *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..4c816cfa3c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..2749d1d94c
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..421af5e3a4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..e875636188
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..56ab611158
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..2d8cb1dcd7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..99a1a21241
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..b1fba994a2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-null.js
new file mode 100644
index 0000000000..77017df4a3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-null.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ static *method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-undefined.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..523b662f2d
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-init-undefined.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ static *method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..a2b9b986cb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+class C {
+ static *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..963d6e8c5e
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ static *method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..52120dac15
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4c93913819
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..26e5ba6401
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..0bb43fe393
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..ec7167e2d4
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..139fbd7fa7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static *method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..66fd04c7a8
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static *method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..180b96a088
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static *method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..9c7c64b985
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..1c54ef902a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static *method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..040248ac59
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..e6c43d7407
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..416c8f46c3
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..f4cfaebfa6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..f78ae52061
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static *method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..eb5269f73a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ static *method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..8f06565fc0
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,101 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..386031fea7
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static *method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..4f774207b2
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static *method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..675f73d0c6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..9e98c160a6
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..0a48908564
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..7fd6de3876
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..91537b5f6a
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..fcd324e7ab
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static *method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..9272d80dfb
--- /dev/null
+++ b/test/language/statements/class/dstr-gen-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..f622f29f77
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-init-iter-get-err.js b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..7d0fc862d9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+class C {
+ method([x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..351b527e10
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..d73b777f19
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..2113b8fcdd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..8b5bd3ceb8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..54e1565583
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..fdfa656d54
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+class C {
+ method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..54c2e7e2c0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+class C {
+ method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..1df936e3ef
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..b116bf9d26
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+class C {
+ method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..711bbd2b4d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..2c28fea71c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Nested array destructuring with a null value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+class C {
+ method([[x]] = [null]) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..17d992f20e
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..d18d57374c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4979f5020d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..7f25f0f1cd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..785f00d5a9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..24fa5286ea
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..871c869657
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..8cc86b0bcc
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..870590414b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+class C {
+ method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..1762e2c3b4
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..366106c155
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ method([ x = unresolvableReference ] = []) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..69f37ffcaa
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..971963272d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..d01da5241a
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+class C {
+ method([x] = g) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..b422b175df
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ method([x] = g) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..7769f2ac26
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..ed009e3423
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..0e91ee5de5
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..fa6b594519
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..07acb7ca38
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..31f338f736
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Nested object destructuring with a null value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ method([{ x }] = [null]) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..6e76a10db8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ method([{ x }] = []) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..e6ca887d66
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+class C {
+ method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..be34b4068e
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+class C {
+ method([,] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..25cebd605f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..8b421d4106
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..8b0ef02793
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,105 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..eecdce1c91
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,111 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..47a0ff81bd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..07ed9d6322
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..87216e1f3a
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+class C {
+ method([, ...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..eef090b43a
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+class C {
+ method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..969655eccb
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+class C {
+ method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..5d1dda5733
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+class C {
+ method([...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..c7d484a7b6
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ method([...x] = iter) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..f1320a791d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Lone rest element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..51e9b03354
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..182992ad8b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..8bc377226f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..85ade6f323
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..778a535e03
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..eb8046ef02
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..b5172d9098
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..447c10d94d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-init-null.js b/test/language/statements/class/dstr-meth-dflt-obj-init-null.js
new file mode 100644
index 0000000000..010bb00ac9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-init-null.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ method({} = null) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-init-undefined.js b/test/language/statements/class/dstr-meth-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..46e57a9cea
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-init-undefined.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ method({} = undefined) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..0225dd2fd1
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+class C {
+ method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..8dcda8d874
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ method({ poisoned } = poisonedProperty) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..8bbf3187a0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a2b56f5abe
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..8345bf3481
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..9dc51483cd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..b3cd4c3172
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..7c5f8a1453
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..ede61ab581
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ method({ x = thrower() } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..f685d6925d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ method({ x = unresolvableReference } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..91d6e40522
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-list-err.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..9ee791529c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..65aa2ea5d9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..bf7b97f870
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..cbe4f3c967
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..ad8c844723
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..f56697919c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ method({ [thrower()]: x } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..524ac7ba85
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..9855fc3a8f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..1d9e6a9dcb
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ method({ x: y = thrower() } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(Test262Error, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..72b320dfa9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ method({ x: y = unresolvableReference } = {}) {}
+};
+
+var c = new C();
+
+assert.throws(ReferenceError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..89d5c3e662
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..f4b1133d11
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..06bd46d480
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..7a0878443e
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..24a7a1e876
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..92d4cf3f9f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+var c = new C();
+
+assert.throws(TypeError, function() {
+ c.method();
+});
diff --git a/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..a51a6f2fd0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..73dd499b86
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ static method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-get-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..466bc738be
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+class C {
+ static method([x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..13bf83b0d8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+class C {
+ static method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..f6e0d82e7b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..27b67f0a8d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..2a25dabf14
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..24896dd63f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..2e5bef1035
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+class C {
+ static method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..0d9c8e47dd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+class C {
+ static method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..562ee56690
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ static method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..de51d5527e
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+class C {
+ static method([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..f061737cf0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+class C {
+ static method([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..304f5b444b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Nested array destructuring with a null value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+class C {
+ static method([[x]] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..4981f9743d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..dab5ffd8f0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..922e3042fe
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..c8d7120e74
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e7f32f1208
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..0b19c53702
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..8e6c2e9673
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..6c319ee354
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static method([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..8102ea7210
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+class C {
+ static method([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..61cbf1370d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..934a41dfa0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static method([ x = unresolvableReference ] = []) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..fc739b6657
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..9ec53e2ae7
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..1b577f92c7
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+class C {
+ static method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..6bc92b07e6
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ static method([x] = g) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..776c19b7eb
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..a4ddbacd42
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..72c062c11b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..66878c7af3
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..7cf14cff82
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..4041160ca1
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a null value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ static method([{ x }] = [null]) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..5f8cbdfc96
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+class C {
+ static method([{ x }] = []) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..e011176909
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+class C {
+ static method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..e4b4b56762
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,93 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+class C {
+ static method([,] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..d090623ce8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..d361f69b1c
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ static method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..13d59b5093
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,105 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..14c7eac34d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,111 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+class C {
+ static method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..91f24a4508
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,94 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+class C {
+ static method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..41b355b0b4
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ static method([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..fbda4c0f1f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+class C {
+ static method([, ...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..710b261aa9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+class C {
+ static method([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..7c3fd3e4d0
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+class C {
+ static method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..c69040be38
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+class C {
+ static method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..2284a6448d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+class C {
+ static method([...x] = iter) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..6d78576dab
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+class C {
+ static method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..263f3b84b8
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..a61c9a964d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..d5aa4120b6
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..1632b535f9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..c8095b1607
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..b7394c8048
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..fef1563144
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..d8f0410c05
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static method([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-init-null.js b/test/language/statements/class/dstr-meth-static-dflt-obj-init-null.js
new file mode 100644
index 0000000000..041aba454d
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-init-null.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ static method({} = null) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-init-undefined.js b/test/language/statements/class/dstr-meth-static-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..ae08aa1b31
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-init-undefined.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+class C {
+ static method({} = undefined) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..d15e6ea031
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+class C {
+ static method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..85ab81e46f
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ static method({ poisoned } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..3fff254c93
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4a7a08b579
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..5306f5f3be
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..87aef5a67b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..1c8d131152
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..8c5fed7d15
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static method({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..5e21a5e861
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static method({ x = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..6a41823b39
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static method({ x = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..a74daebfb9
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-list-err.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..618d6e3b92
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static method({ a, b = thrower(), c = ++initCount } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..5c5c17f394
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..9bd2ce8723
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..1ad1c33712
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..891f6ad1a5
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..67ac32e8dd
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static method({ [thrower()]: x } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..e1d0b4a18b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+class C {
+ static method({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..16a8e460fa
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+class C {
+ static method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..77a296fd95
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+class C {
+ static method({ x: y = thrower() } = {}) {}
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..4e32a61ddb
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+class C {
+ static method({ x: y = unresolvableReference } = {}) {}
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..8e4acbea92
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..183eab3b35
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..08c170130a
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+class C {
+ static method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..ad9399c870
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..70af3fad03
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..cd6d87dd78
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+class C {
+ static method({ w: { x, y, z } = undefined } = { }) {}
+};
+
+assert.throws(TypeError, function() {
+ C.method();
+});
diff --git a/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..3051e14f4b
--- /dev/null
+++ b/test/language/statements/class/dstr-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-init-iter-close.js b/test/language/statements/function/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..6dcd43be36
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+function f([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-init-iter-get-err.js b/test/language/statements/function/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..cb46c7abc5
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+function f([x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-init-iter-no-close.js b/test/language/statements/function/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5ce2199795
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+function f([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-name-iter-val.js b/test/language/statements/function/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..55ffdbc86f
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..fb11fbbf05
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..30b9b0aef6
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..a85dd0e042
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function f([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..2efc077cd1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+function f([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..81ae466e1a
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+function f([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..37f7f2f89b
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+function f([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..8d854e5c94
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+function f([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..50044b4989
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+function f([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..1bb6c789ba
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested array destructuring with a null value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+function f([[x]] = [null]) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..5c0817e4a1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..2d4a22bcc3
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..477e554042
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..78226fc1f0
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..47f2d01fa9
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..ba3ab7b2a5
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..ace40abc4e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..0dbdeb0f28
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function f([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..b9ef8da228
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+function f([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..d9b1a3c840
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..9a9361afd3
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f([ x = unresolvableReference ] = []) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..1dfa727bb7
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..6a5711406e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..690a2fa252
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+function f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..960598c1f0
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+function f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..66b0f4cb9e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..c93a3452eb
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..b090600c0b
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..5cd253bfdd
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..7cef2b8a06
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..7f1fb1e106
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested object destructuring with a null value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+function f([{ x }] = [null]) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..a6847a6ff4
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+function f([{ x }] = []) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..47d1b06c7e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Elision accepts exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+function f([,] = iter) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..423b3d16fa
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+function f([,] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-elision.js b/test/language/statements/function/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..3844f7dd89
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Elision advances iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function f([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-empty.js b/test/language/statements/function/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..87ba2c4103
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+function f([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..2903d5efa4
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..c2dc9d6a2b
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an elision (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function f([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..03bcd7af2a
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+function f([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..7ce2a0d4af
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing a rest element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function f([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..9d86883469
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Rest element following elision elements (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+function f([, ...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..4afe09d859
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element following elision elements (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+function f([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..cd05ebdc67
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+function f([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..2a9445800a
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+function f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..fe9088155c
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+function f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..b080eb6689
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Lone rest element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function f([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..bccd34bba8
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..804f98bfea
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..39a080d8dd
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..f23820db95
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..a3bd7a3b30
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..b0bffcfb89
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function f([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..75f4774135
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function f([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..e10f62a5cb
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function f([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-init-null.js b/test/language/statements/function/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..1bd9c032cb
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-init-null.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+function f({} = null) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-init-undefined.js b/test/language/statements/function/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..aeb4510c47
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+function f({} = undefined) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-empty.js b/test/language/statements/function/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..d7dce50fd2
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+function f({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..4fcba776f5
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+function f({ poisoned } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..440975b842
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..f9eb8e325f
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..67c39b7db8
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..8882557c0e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..cf12cc58a2
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function f({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..95a339154f
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function f({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..82f393491d
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function f({ x = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..1d2a127a38
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f({ x = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..64f938578c
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-list-err.js b/test/language/statements/function/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..2705a11561
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+function f({ a, b = thrower(), c = ++initCount } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..620fb163b1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..638d893adf
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..39c810641e
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function f({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..616e757ad3
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..9bbdd4df19
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function f({ [thrower()]: x } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..566e29e297
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+function f({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..050d2e3dfa
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..24d20c1efc
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function f({ x: y = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..65feafa0dc
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f({ x: y = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..fa07c0c0d1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..a8da076bd4
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..14f2b8b60d
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Binding as specified via property name and identifier (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..537fe4db81
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..918d9027d1
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..7256753f9f
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function f({ w: { x, y, z } = undefined } = { }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..e94711519b
--- /dev/null
+++ b/test/language/statements/function/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-init-iter-close.js b/test/language/statements/generators/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..b7159d14f7
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+function* f([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-init-iter-get-err.js b/test/language/statements/generators/dstr-dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..be0a0929fe
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-init-iter-get-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+ throw new Test262Error();
+};
+
+function* f([x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-init-iter-no-close.js b/test/language/statements/generators/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..b08a9f0841
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+var callCount = 0;
+function* f([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-name-iter-val.js b/test/language/statements/generators/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..01cc9dfb4d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..86d79f337b
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..4df9e01554
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..5a711c3b10
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function* f([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..a37124d6bf
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+var callCount = 0;
+function* f([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..d535b67c4b
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+function* f([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..db6ad2f12a
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+function* f([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..1cbba70f3c
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+function* f([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..08f81debb1
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+function* f([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..67ea3a8278
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Nested array destructuring with a null value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ 1. Let iterator be GetIterator(value).
+ 2. ReturnIfAbrupt(iterator).
+---*/
+
+function* f([[x]] = [null]) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..193c144826
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..854c4457fb
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4724ef3f25
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([cls = class {}, xCls = class X {}] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..37ac885369
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e2f20084a9
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..de951966fc
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..ef05a5478b
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..067f1dbe10
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function* f([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..e5bdb2bf5c
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+
+function* f([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..12cc3cd63c
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..3860cbd0c0
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function* f([ x = unresolvableReference ] = []) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..801b828215
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..433f52ee60
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..08c70c21c3
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ throw new Test262Error();
+ }
+ };
+};
+
+function* f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..e223c03b4d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(v).
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+function* f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..22cc5f2077
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..39067b4ab9
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..191f6635ea
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..1ece4c26d1
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..5c50e495f8
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+ assert.sameValue(v, 777);
+ assert.sameValue(x, 888);
+ assert.sameValue(z, 999);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..596d0aab10
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Nested object destructuring with a null value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+function* f([{ x }] = [null]) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..0731bc027e
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ e. Else
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ObjectBindingPattern
+
+ 1. Let valid be RequireObjectCoercible(value).
+ 2. ReturnIfAbrupt(valid).
+---*/
+
+function* f([{ x }] = []) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..8cfb101211
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Elision accepts exhausted iterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+function* f([,] = iter) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-step-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..c9713a1e3e
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+ throw new Test262Error();
+ following += 1;
+}();
+
+function* f([,] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-elision.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..f9e7235810
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Elision advances iterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function* f([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-empty.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..6f0a518888
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+function* f([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..eef37179bb
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..33ba155823
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an elision (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+var callCount = 0;
+function* f([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..21e7af104a
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+var callCount = 0;
+function* f([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..c3f1e58bc2
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing a rest element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function* f([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..e83d023e74
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Rest element following elision elements (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+function* f([, ...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..ad05e3cfd1
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element following elision elements (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+function* f([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..add35a813b
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+function* f([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..71415f728d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ a. If iteratorRecord.[[done]] is false,
+ i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+ first += 1;
+ throw new Test262Error();
+ second += 1;
+}();
+
+function* f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..6adac85057
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ c. Let nextValue be IteratorValue(next).
+ d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+ true.
+ e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return poisonedValue;
+ }
+ };
+};
+
+function* f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..3663784da3
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Lone rest element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function* f([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..2482ebae3e
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..8f5757f7ab
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..3a7ae56563
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..db823e4941
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..19178f05f9
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..0b871fc2e6
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+var callCount = 0;
+function* f([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..cdf51b5aff
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function* f([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..b2b54f17f5
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function* f([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-init-null.js b/test/language/statements/generators/dstr-dflt-obj-init-null.js
new file mode 100644
index 0000000000..f412768ba4
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-init-null.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+function* f({} = null) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-init-undefined.js b/test/language/statements/generators/dstr-dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..f6468ebeb6
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-init-undefined.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+
+function* f({} = undefined) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-empty.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..253010fdeb
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+var callCount = 0;
+function* f({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-get-value-err.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..0d0e5ba2e9
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. Let v be GetV(value, propertyName).
+ 5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+function* f({ poisoned } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..fcfb26a19f
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..c2bbc7e66a
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ cls = class {}, xCls = class X {} } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..5543d43b2c
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..324a5c2276
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..6d994dd2da
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+var callCount = 0;
+function* f({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..4096a4b59f
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function* f({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-throws.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..d06548d200
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function* f({ x = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..dddb47c93f
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function* f({ x = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..7d4a83c1c6
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function* f({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-list-err.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..0981d78f75
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-list-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPropertyList : BindingPropertyList , BindingProperty
+
+ 1. Let status be the result of performing BindingInitialization for
+ BindingPropertyList using value and environment as arguments.
+ 2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+ throw new Test262Error();
+}
+
+function* f({ a, b = thrower(), c = ++initCount } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initCount, 0);
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..0674cd5ed2
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function* f({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..db8885f2cf
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function* f({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..a767e22aae
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function* f({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..41971dd081
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function* f({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-eval-err.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..4d9e8f4a2d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingProperty : PropertyName : BindingElement
+
+ 1. Let P be the result of evaluating PropertyName
+ 2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function* f({ [thrower()]: x } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..62b3f35e01
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ 1. Let v be GetV(value, propertyName).
+ 2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+ get: function() {
+ throw new Test262Error();
+ }
+});
+
+function* f({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(initEvalCount, 0);
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..a468e20520
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+var callCount = 0;
+function* f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..263fb6f1d4
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+ throw new Test262Error();
+}
+
+function* f({ x: y = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..45ba2c738d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+
+ 6.2.3.1 GetValue (V)
+
+ 1. ReturnIfAbrupt(V).
+ 2. If Type(V) is not Reference, return V.
+ 3. Let base be GetBase(V).
+ 4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function* f({ x: y = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..ff051f9789
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..3884b210f8
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function* f({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..91d177e31d
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Binding as specified via property name and identifier (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function* f({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..a98ab8ea25
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..07270d3221
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..29d8c6980a
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+function* f({ w: { x, y, z } = undefined } = { }) {}
+
+assert.throws(TypeError, function() {
+ f();
+});
diff --git a/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..965520888f
--- /dev/null
+++ b/test/language/statements/generators/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (generator function declaration (default parameter))
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
--
GitLab
From 71f9559f11a5f602cc22884ed1ddd48b826ba76c Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Thu, 2 Jun 2016 14:30:48 -0400
Subject: [PATCH 3/8] Add tests for default parameters
---
src/dflt-params/abrupt.case | 21 ++++++
src/dflt-params/arg-val-not-undefined.case | 47 ++++++++++++
src/dflt-params/arg-val-undefined.case | 29 +++++++
.../default/arrow-function.template | 48 ++++++++++++
.../default/cls-decl-gen-meth-static.template | 72 ++++++++++++++++++
.../default/cls-decl-gen-meth.template | 72 ++++++++++++++++++
.../default/cls-decl-meth-static.template | 70 +++++++++++++++++
.../default/cls-decl-meth.template | 70 +++++++++++++++++
.../default/cls-expr-gen-meth-static.template | 74 ++++++++++++++++++
.../default/cls-expr-gen-meth.template | 74 ++++++++++++++++++
.../default/cls-expr-meth-static.template | 71 ++++++++++++++++++
.../default/cls-expr-meth.template | 71 ++++++++++++++++++
src/dflt-params/default/func-decl.template | 50 +++++++++++++
src/dflt-params/default/func-expr.template | 50 +++++++++++++
.../default/gen-func-decl.template | 49 ++++++++++++
.../default/gen-func-expr.template | 50 +++++++++++++
src/dflt-params/default/gen-meth.template | 56 ++++++++++++++
src/dflt-params/default/meth.template | 53 +++++++++++++
src/dflt-params/duplicates.case | 25 +++++++
src/dflt-params/error/arrow-function.template | 50 +++++++++++++
.../error/cls-decl-gen-meth-static.template | 74 ++++++++++++++++++
.../error/cls-decl-gen-meth.template | 73 ++++++++++++++++++
.../error/cls-decl-meth-static.template | 71 ++++++++++++++++++
src/dflt-params/error/cls-decl-meth.template | 71 ++++++++++++++++++
.../error/cls-expr-gen-meth-static.template | 75 +++++++++++++++++++
.../error/cls-expr-gen-meth.template | 75 +++++++++++++++++++
.../error/cls-expr-meth-static.template | 72 ++++++++++++++++++
src/dflt-params/error/cls-expr-meth.template | 72 ++++++++++++++++++
src/dflt-params/error/func-decl.template | 50 +++++++++++++
src/dflt-params/error/func-expr.template | 51 +++++++++++++
src/dflt-params/error/gen-func-decl.template | 51 +++++++++++++
src/dflt-params/error/gen-func-expr.template | 51 +++++++++++++
src/dflt-params/error/gen-meth.template | 57 ++++++++++++++
src/dflt-params/error/meth.template | 54 +++++++++++++
src/dflt-params/ref-later.case | 23 ++++++
src/dflt-params/ref-prior.case | 27 +++++++
src/dflt-params/ref-self.case | 23 ++++++
src/dflt-params/rest.case | 27 +++++++
.../syntax/arrow-function.template | 42 +++++++++++
.../syntax/cls-decl-gen-meth-static.template | 66 ++++++++++++++++
.../syntax/cls-decl-gen-meth.template | 66 ++++++++++++++++
.../syntax/cls-decl-meth-static.template | 64 ++++++++++++++++
src/dflt-params/syntax/cls-decl-meth.template | 64 ++++++++++++++++
.../syntax/cls-expr-gen-meth-static.template | 68 +++++++++++++++++
.../syntax/cls-expr-gen-meth.template | 68 +++++++++++++++++
.../syntax/cls-expr-meth-static.template | 65 ++++++++++++++++
src/dflt-params/syntax/cls-expr-meth.template | 65 ++++++++++++++++
src/dflt-params/syntax/func-decl.template | 44 +++++++++++
src/dflt-params/syntax/func-expr.template | 43 +++++++++++
src/dflt-params/syntax/gen-func-decl.template | 43 +++++++++++
src/dflt-params/syntax/gen-func-expr.template | 43 +++++++++++
src/dflt-params/syntax/gen-meth.template | 50 +++++++++++++
src/dflt-params/syntax/meth.template | 47 ++++++++++++
53 files changed, 2937 insertions(+)
create mode 100644 src/dflt-params/abrupt.case
create mode 100644 src/dflt-params/arg-val-not-undefined.case
create mode 100644 src/dflt-params/arg-val-undefined.case
create mode 100644 src/dflt-params/default/arrow-function.template
create mode 100644 src/dflt-params/default/cls-decl-gen-meth-static.template
create mode 100644 src/dflt-params/default/cls-decl-gen-meth.template
create mode 100644 src/dflt-params/default/cls-decl-meth-static.template
create mode 100644 src/dflt-params/default/cls-decl-meth.template
create mode 100644 src/dflt-params/default/cls-expr-gen-meth-static.template
create mode 100644 src/dflt-params/default/cls-expr-gen-meth.template
create mode 100644 src/dflt-params/default/cls-expr-meth-static.template
create mode 100644 src/dflt-params/default/cls-expr-meth.template
create mode 100644 src/dflt-params/default/func-decl.template
create mode 100644 src/dflt-params/default/func-expr.template
create mode 100644 src/dflt-params/default/gen-func-decl.template
create mode 100644 src/dflt-params/default/gen-func-expr.template
create mode 100644 src/dflt-params/default/gen-meth.template
create mode 100644 src/dflt-params/default/meth.template
create mode 100644 src/dflt-params/duplicates.case
create mode 100644 src/dflt-params/error/arrow-function.template
create mode 100644 src/dflt-params/error/cls-decl-gen-meth-static.template
create mode 100644 src/dflt-params/error/cls-decl-gen-meth.template
create mode 100644 src/dflt-params/error/cls-decl-meth-static.template
create mode 100644 src/dflt-params/error/cls-decl-meth.template
create mode 100644 src/dflt-params/error/cls-expr-gen-meth-static.template
create mode 100644 src/dflt-params/error/cls-expr-gen-meth.template
create mode 100644 src/dflt-params/error/cls-expr-meth-static.template
create mode 100644 src/dflt-params/error/cls-expr-meth.template
create mode 100644 src/dflt-params/error/func-decl.template
create mode 100644 src/dflt-params/error/func-expr.template
create mode 100644 src/dflt-params/error/gen-func-decl.template
create mode 100644 src/dflt-params/error/gen-func-expr.template
create mode 100644 src/dflt-params/error/gen-meth.template
create mode 100644 src/dflt-params/error/meth.template
create mode 100644 src/dflt-params/ref-later.case
create mode 100644 src/dflt-params/ref-prior.case
create mode 100644 src/dflt-params/ref-self.case
create mode 100644 src/dflt-params/rest.case
create mode 100644 src/dflt-params/syntax/arrow-function.template
create mode 100644 src/dflt-params/syntax/cls-decl-gen-meth-static.template
create mode 100644 src/dflt-params/syntax/cls-decl-gen-meth.template
create mode 100644 src/dflt-params/syntax/cls-decl-meth-static.template
create mode 100644 src/dflt-params/syntax/cls-decl-meth.template
create mode 100644 src/dflt-params/syntax/cls-expr-gen-meth-static.template
create mode 100644 src/dflt-params/syntax/cls-expr-gen-meth.template
create mode 100644 src/dflt-params/syntax/cls-expr-meth-static.template
create mode 100644 src/dflt-params/syntax/cls-expr-meth.template
create mode 100644 src/dflt-params/syntax/func-decl.template
create mode 100644 src/dflt-params/syntax/func-expr.template
create mode 100644 src/dflt-params/syntax/gen-func-decl.template
create mode 100644 src/dflt-params/syntax/gen-func-expr.template
create mode 100644 src/dflt-params/syntax/gen-meth.template
create mode 100644 src/dflt-params/syntax/meth.template
diff --git a/src/dflt-params/abrupt.case b/src/dflt-params/abrupt.case
new file mode 100644
index 0000000000..7c52350567
--- /dev/null
+++ b/src/dflt-params/abrupt.case
@@ -0,0 +1,21 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+desc: Abrupt completion returned by evaluation of initializer
+template: error
+info: |
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+//- params
+_ = (function() { throw new Test262Error(); }())
+//- error
+Test262Error
diff --git a/src/dflt-params/arg-val-not-undefined.case b/src/dflt-params/arg-val-not-undefined.case
new file mode 100644
index 0000000000..20082b1ae9
--- /dev/null
+++ b/src/dflt-params/arg-val-not-undefined.case
@@ -0,0 +1,47 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+desc: Use of intializer when argument value is not `undefined`
+template: default
+info: |
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+//- setup
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+//- params
+aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1
+//- args
+false, '', NaN, 0, null, obj
+//- body
+assert.sameValue(aFalse, false);
+assert.sameValue(aString, '');
+assert.sameValue(aNaN, NaN);
+assert.sameValue(a0, 0);
+assert.sameValue(aNull, null);
+assert.sameValue(aObj, obj);
+//- teardown
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/src/dflt-params/arg-val-undefined.case b/src/dflt-params/arg-val-undefined.case
new file mode 100644
index 0000000000..3d4797b26e
--- /dev/null
+++ b/src/dflt-params/arg-val-undefined.case
@@ -0,0 +1,29 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+desc: Use of intializer when argument value is `undefined`
+template: default
+info: |
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+//- params
+fromLiteral = 23, fromExpr = 45, fromHole = 99
+//- args
+undefined, void 0
+//- body
+assert.sameValue(fromLiteral, 23);
+assert.sameValue(fromExpr, 45);
+assert.sameValue(fromHole, 99);
diff --git a/src/dflt-params/default/arrow-function.template b/src/dflt-params/default/arrow-function.template
new file mode 100644
index 0000000000..d6b94de60a
--- /dev/null
+++ b/src/dflt-params/default/arrow-function.template
@@ -0,0 +1,48 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/arrow-function/params-dflt-
+name: arrow function expression
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = (/*{ params }*/) => {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f(/*{ args }*/);
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/src/dflt-params/default/cls-decl-gen-meth-static.template b/src/dflt-params/default/cls-decl-gen-meth-static.template
new file mode 100644
index 0000000000..a617fc6d6f
--- /dev/null
+++ b/src/dflt-params/default/cls-decl-gen-meth-static.template
@@ -0,0 +1,72 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-gen-meth-static-
+name: static class expression generator method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+}
+
+C.method(/*{ args }*/).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/default/cls-decl-gen-meth.template b/src/dflt-params/default/cls-decl-gen-meth.template
new file mode 100644
index 0000000000..ba80c6ecd2
--- /dev/null
+++ b/src/dflt-params/default/cls-decl-gen-meth.template
@@ -0,0 +1,72 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-gen-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(/*{ args }*/).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/default/cls-decl-meth-static.template b/src/dflt-params/default/cls-decl-meth-static.template
new file mode 100644
index 0000000000..637db4ac8d
--- /dev/null
+++ b/src/dflt-params/default/cls-decl-meth-static.template
@@ -0,0 +1,70 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-meth-static-
+name: static class expression method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+}
+
+C.method(/*{ args }*/);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/default/cls-decl-meth.template b/src/dflt-params/default/cls-decl-meth.template
new file mode 100644
index 0000000000..9c5eabaa95
--- /dev/null
+++ b/src/dflt-params/default/cls-decl-meth.template
@@ -0,0 +1,70 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-meth-
+name: class expression method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(/*{ args }*/);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/default/cls-expr-gen-meth-static.template b/src/dflt-params/default/cls-expr-gen-meth-static.template
new file mode 100644
index 0000000000..1964116f89
--- /dev/null
+++ b/src/dflt-params/default/cls-expr-gen-meth-static.template
@@ -0,0 +1,74 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-gen-meth-static-
+name: static class expression generator method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method(/*{ args }*/).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/default/cls-expr-gen-meth.template b/src/dflt-params/default/cls-expr-gen-meth.template
new file mode 100644
index 0000000000..a02781a19d
--- /dev/null
+++ b/src/dflt-params/default/cls-expr-gen-meth.template
@@ -0,0 +1,74 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-gen-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(/*{ args }*/).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/default/cls-expr-meth-static.template b/src/dflt-params/default/cls-expr-meth-static.template
new file mode 100644
index 0000000000..1906dc9d1f
--- /dev/null
+++ b/src/dflt-params/default/cls-expr-meth-static.template
@@ -0,0 +1,71 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-meth-static-
+name: static class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method(/*{ args }*/);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/default/cls-expr-meth.template b/src/dflt-params/default/cls-expr-meth.template
new file mode 100644
index 0000000000..0220880d47
--- /dev/null
+++ b/src/dflt-params/default/cls-expr-meth.template
@@ -0,0 +1,71 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(/*{ args }*/);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/default/func-decl.template b/src/dflt-params/default/func-decl.template
new file mode 100644
index 0000000000..d6cdb614b6
--- /dev/null
+++ b/src/dflt-params/default/func-decl.template
@@ -0,0 +1,50 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/function/params-dflt-
+name: function declaration
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function f(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+}
+
+f(/*{ args }*/);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/src/dflt-params/default/func-expr.template b/src/dflt-params/default/func-expr.template
new file mode 100644
index 0000000000..75cbfecf45
--- /dev/null
+++ b/src/dflt-params/default/func-expr.template
@@ -0,0 +1,50 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/function/params-dflt-
+name: function expression
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f(/*{ args }*/);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/src/dflt-params/default/gen-func-decl.template b/src/dflt-params/default/gen-func-decl.template
new file mode 100644
index 0000000000..c3d38a3761
--- /dev/null
+++ b/src/dflt-params/default/gen-func-decl.template
@@ -0,0 +1,49 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/generators/params-dflt-
+name: generator function declaration
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function* f(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+}
+
+f(/*{ args }*/).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/src/dflt-params/default/gen-func-expr.template b/src/dflt-params/default/gen-func-expr.template
new file mode 100644
index 0000000000..c95d116be6
--- /dev/null
+++ b/src/dflt-params/default/gen-func-expr.template
@@ -0,0 +1,50 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/generators/params-dflt-
+name: generator function expression
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function*(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f(/*{ args }*/).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/src/dflt-params/default/gen-meth.template b/src/dflt-params/default/gen-meth.template
new file mode 100644
index 0000000000..a302e61601
--- /dev/null
+++ b/src/dflt-params/default/gen-meth.template
@@ -0,0 +1,56 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/method-definition/params-dflt-gen-meth-
+name: generator method
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(/*{ args }*/).next();
+
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/src/dflt-params/default/meth.template b/src/dflt-params/default/meth.template
new file mode 100644
index 0000000000..48f25bdfd0
--- /dev/null
+++ b/src/dflt-params/default/meth.template
@@ -0,0 +1,53 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/method-definition/params-dflt-meth-
+name: method
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(/*{ args }*/);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/src/dflt-params/duplicates.case b/src/dflt-params/duplicates.case
new file mode 100644
index 0000000000..e2a6e424d0
--- /dev/null
+++ b/src/dflt-params/duplicates.case
@@ -0,0 +1,25 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+desc: >
+ It is a Syntax Error if BoundNames of FormalParameters contains any duplicate
+ elements.
+template: syntax
+negative: SyntaxError
+info: |
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+//- params
+x = 0, x
diff --git a/src/dflt-params/error/arrow-function.template b/src/dflt-params/error/arrow-function.template
new file mode 100644
index 0000000000..80e76e09b3
--- /dev/null
+++ b/src/dflt-params/error/arrow-function.template
@@ -0,0 +1,50 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/arrow-function/params-dflt-
+name: arrow function expression
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = (/*{ params }*/) => {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+assert.throws(/*{ error }*/, function() {
+ f(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'arrow function body not evaluated');
diff --git a/src/dflt-params/error/cls-decl-gen-meth-static.template b/src/dflt-params/error/cls-decl-gen-meth-static.template
new file mode 100644
index 0000000000..91132c062e
--- /dev/null
+++ b/src/dflt-params/error/cls-decl-gen-meth-static.template
@@ -0,0 +1,74 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-gen-meth-static-
+name: static class expression generator method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(/*{ error }*/, function() {
+ C.method(/*{ args }*/);
+});
+
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/error/cls-decl-gen-meth.template b/src/dflt-params/error/cls-decl-gen-meth.template
new file mode 100644
index 0000000000..a27716832b
--- /dev/null
+++ b/src/dflt-params/error/cls-decl-gen-meth.template
@@ -0,0 +1,73 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-gen-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(/*{ error }*/, function() {
+ C.prototype.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/error/cls-decl-meth-static.template b/src/dflt-params/error/cls-decl-meth-static.template
new file mode 100644
index 0000000000..204380ef36
--- /dev/null
+++ b/src/dflt-params/error/cls-decl-meth-static.template
@@ -0,0 +1,71 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-meth-static-
+name: static class expression method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(/*{ error }*/, function() {
+ C.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/error/cls-decl-meth.template b/src/dflt-params/error/cls-decl-meth.template
new file mode 100644
index 0000000000..3242269590
--- /dev/null
+++ b/src/dflt-params/error/cls-decl-meth.template
@@ -0,0 +1,71 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-meth-
+name: class expression method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(/*{ error }*/, function() {
+ C.prototype.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/error/cls-expr-gen-meth-static.template b/src/dflt-params/error/cls-expr-gen-meth-static.template
new file mode 100644
index 0000000000..9c43e710f6
--- /dev/null
+++ b/src/dflt-params/error/cls-expr-gen-meth-static.template
@@ -0,0 +1,75 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-gen-meth-static-
+name: static class expression generator method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(/*{ error }*/, function() {
+ C.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/error/cls-expr-gen-meth.template b/src/dflt-params/error/cls-expr-gen-meth.template
new file mode 100644
index 0000000000..f1603cf651
--- /dev/null
+++ b/src/dflt-params/error/cls-expr-gen-meth.template
@@ -0,0 +1,75 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-gen-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(/*{ error }*/, function() {
+ C.prototype.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/error/cls-expr-meth-static.template b/src/dflt-params/error/cls-expr-meth-static.template
new file mode 100644
index 0000000000..05bed0933b
--- /dev/null
+++ b/src/dflt-params/error/cls-expr-meth-static.template
@@ -0,0 +1,72 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-meth-static-
+name: static class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(/*{ error }*/, function() {
+ C.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/error/cls-expr-meth.template b/src/dflt-params/error/cls-expr-meth.template
new file mode 100644
index 0000000000..b89ff9944f
--- /dev/null
+++ b/src/dflt-params/error/cls-expr-meth.template
@@ -0,0 +1,72 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(/*{ error }*/, function() {
+ C.prototype.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/error/func-decl.template b/src/dflt-params/error/func-decl.template
new file mode 100644
index 0000000000..81e5da3712
--- /dev/null
+++ b/src/dflt-params/error/func-decl.template
@@ -0,0 +1,50 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/function/params-dflt-
+name: function declaration
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function f(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+}
+assert.throws(/*{ error }*/, function() {
+ f(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
diff --git a/src/dflt-params/error/func-expr.template b/src/dflt-params/error/func-expr.template
new file mode 100644
index 0000000000..2d38723ca1
--- /dev/null
+++ b/src/dflt-params/error/func-expr.template
@@ -0,0 +1,51 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/function/params-dflt-
+name: function expression
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+assert.throws(/*{ error }*/, function() {
+ f(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
diff --git a/src/dflt-params/error/gen-func-decl.template b/src/dflt-params/error/gen-func-decl.template
new file mode 100644
index 0000000000..74d7e3e33b
--- /dev/null
+++ b/src/dflt-params/error/gen-func-decl.template
@@ -0,0 +1,51 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/generators/params-dflt-
+name: generator function declaration
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function* f(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+}
+
+assert.throws(/*{ error }*/, function() {
+ f(/*{ args }*/);
+});
+
+assert.sameValue(callCount, 0, 'generator function body not evaluated');
diff --git a/src/dflt-params/error/gen-func-expr.template b/src/dflt-params/error/gen-func-expr.template
new file mode 100644
index 0000000000..950d3e132b
--- /dev/null
+++ b/src/dflt-params/error/gen-func-expr.template
@@ -0,0 +1,51 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/generators/params-dflt-
+name: generator function expression
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function*(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+assert.throws(/*{ error }*/, function() {
+ f(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'generator function body not evaluated');
diff --git a/src/dflt-params/error/gen-meth.template b/src/dflt-params/error/gen-meth.template
new file mode 100644
index 0000000000..3862e08507
--- /dev/null
+++ b/src/dflt-params/error/gen-meth.template
@@ -0,0 +1,57 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/method-definition/params-dflt-gen-meth-
+name: generator method
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(/*{ error }*/, function() {
+ obj.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'generator method body not evaluated');
diff --git a/src/dflt-params/error/meth.template b/src/dflt-params/error/meth.template
new file mode 100644
index 0000000000..3683dbbedf
--- /dev/null
+++ b/src/dflt-params/error/meth.template
@@ -0,0 +1,54 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/method-definition/params-dflt-meth-
+name: method
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(/*{ error }*/, function() {
+ obj.method(/*{ args }*/);
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/src/dflt-params/ref-later.case b/src/dflt-params/ref-later.case
new file mode 100644
index 0000000000..3087a10f32
--- /dev/null
+++ b/src/dflt-params/ref-later.case
@@ -0,0 +1,23 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+desc: Referencing a parameter that occurs later in the ParameterList
+template: error
+info: |
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+//- setup
+var x = 0;
+//- params
+x = y, y
+//- error
+ReferenceError
diff --git a/src/dflt-params/ref-prior.case b/src/dflt-params/ref-prior.case
new file mode 100644
index 0000000000..5e28248bb0
--- /dev/null
+++ b/src/dflt-params/ref-prior.case
@@ -0,0 +1,27 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+desc: Referencing a parameter that occurs earlier in the ParameterList
+template: default
+info: |
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+//- setup
+var x = 0;
+//- params
+x, y = x, z = y
+//- args
+3
+//- body
+assert.sameValue(x, 3, 'first argument value');
+assert.sameValue(y, 3, 'second argument value');
+assert.sameValue(z, 3, 'third argument value');
diff --git a/src/dflt-params/ref-self.case b/src/dflt-params/ref-self.case
new file mode 100644
index 0000000000..41b92f46e5
--- /dev/null
+++ b/src/dflt-params/ref-self.case
@@ -0,0 +1,23 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+desc: Referencing a parameter from within its own initializer
+template: error
+info: |
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+//- setup
+var x = 0;
+//- params
+x = x
+//- error
+ReferenceError
diff --git a/src/dflt-params/rest.case b/src/dflt-params/rest.case
new file mode 100644
index 0000000000..e8b7f03e35
--- /dev/null
+++ b/src/dflt-params/rest.case
@@ -0,0 +1,27 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+desc: RestParameter does not support an initializer
+template: syntax
+info: |
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+negative: SyntaxError
+---*/
+
+//- params
+...x = []
diff --git a/src/dflt-params/syntax/arrow-function.template b/src/dflt-params/syntax/arrow-function.template
new file mode 100644
index 0000000000..46f6eabab0
--- /dev/null
+++ b/src/dflt-params/syntax/arrow-function.template
@@ -0,0 +1,42 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/arrow-function/params-dflt-
+name: arrow function expression
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, (/*{ params }*/) => {
+ /*{ body }*/
+};
diff --git a/src/dflt-params/syntax/cls-decl-gen-meth-static.template b/src/dflt-params/syntax/cls-decl-gen-meth-static.template
new file mode 100644
index 0000000000..50414c1ada
--- /dev/null
+++ b/src/dflt-params/syntax/cls-decl-gen-meth-static.template
@@ -0,0 +1,66 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-gen-meth-static-
+name: static class expression generator method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+class C {
+ static *method(/*{ params }*/) {
+ /*{ body }*/
+ }
+}
diff --git a/src/dflt-params/syntax/cls-decl-gen-meth.template b/src/dflt-params/syntax/cls-decl-gen-meth.template
new file mode 100644
index 0000000000..fe6c086403
--- /dev/null
+++ b/src/dflt-params/syntax/cls-decl-gen-meth.template
@@ -0,0 +1,66 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-gen-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+class C {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ }
+}
diff --git a/src/dflt-params/syntax/cls-decl-meth-static.template b/src/dflt-params/syntax/cls-decl-meth-static.template
new file mode 100644
index 0000000000..b3c8b8709d
--- /dev/null
+++ b/src/dflt-params/syntax/cls-decl-meth-static.template
@@ -0,0 +1,64 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-meth-static-
+name: static class expression method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+class C {
+ static method(/*{ params }*/) {
+ /*{ body }*/
+ }
+}
diff --git a/src/dflt-params/syntax/cls-decl-meth.template b/src/dflt-params/syntax/cls-decl-meth.template
new file mode 100644
index 0000000000..f6cdd67e5d
--- /dev/null
+++ b/src/dflt-params/syntax/cls-decl-meth.template
@@ -0,0 +1,64 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/params-dflt-meth-
+name: class expression method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+class C {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ }
+}
diff --git a/src/dflt-params/syntax/cls-expr-gen-meth-static.template b/src/dflt-params/syntax/cls-expr-gen-meth-static.template
new file mode 100644
index 0000000000..dad8668991
--- /dev/null
+++ b/src/dflt-params/syntax/cls-expr-gen-meth-static.template
@@ -0,0 +1,68 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-gen-meth-static-
+name: static class expression generator method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, class {
+ static *method(/*{ params }*/) {
+ /*{ body }*/
+ }
+};
diff --git a/src/dflt-params/syntax/cls-expr-gen-meth.template b/src/dflt-params/syntax/cls-expr-gen-meth.template
new file mode 100644
index 0000000000..6557296226
--- /dev/null
+++ b/src/dflt-params/syntax/cls-expr-gen-meth.template
@@ -0,0 +1,68 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-gen-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, class {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ }
+};
diff --git a/src/dflt-params/syntax/cls-expr-meth-static.template b/src/dflt-params/syntax/cls-expr-meth-static.template
new file mode 100644
index 0000000000..f90fa8dccb
--- /dev/null
+++ b/src/dflt-params/syntax/cls-expr-meth-static.template
@@ -0,0 +1,65 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-meth-static-
+name: static class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, class {
+ static method(/*{ params }*/) {
+ /*{ body }*/
+ }
+};
diff --git a/src/dflt-params/syntax/cls-expr-meth.template b/src/dflt-params/syntax/cls-expr-meth.template
new file mode 100644
index 0000000000..88f862d083
--- /dev/null
+++ b/src/dflt-params/syntax/cls-expr-meth.template
@@ -0,0 +1,65 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/params-dflt-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, class {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ }
+};
diff --git a/src/dflt-params/syntax/func-decl.template b/src/dflt-params/syntax/func-decl.template
new file mode 100644
index 0000000000..601a9826b2
--- /dev/null
+++ b/src/dflt-params/syntax/func-decl.template
@@ -0,0 +1,44 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/function/params-dflt-
+name: function declaration
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+function f(/*{ params }*/) {
+ /*{ body }*/
+}
diff --git a/src/dflt-params/syntax/func-expr.template b/src/dflt-params/syntax/func-expr.template
new file mode 100644
index 0000000000..8407f2df2a
--- /dev/null
+++ b/src/dflt-params/syntax/func-expr.template
@@ -0,0 +1,43 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/function/params-dflt-
+name: function expression
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, function(/*{ params }*/) {
+ /*{ body }*/
+};
diff --git a/src/dflt-params/syntax/gen-func-decl.template b/src/dflt-params/syntax/gen-func-decl.template
new file mode 100644
index 0000000000..79b7683c96
--- /dev/null
+++ b/src/dflt-params/syntax/gen-func-decl.template
@@ -0,0 +1,43 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/generators/params-dflt-
+name: generator function declaration
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+function* f(/*{ params }*/) {
+ /*{ body }*/
+}
diff --git a/src/dflt-params/syntax/gen-func-expr.template b/src/dflt-params/syntax/gen-func-expr.template
new file mode 100644
index 0000000000..0ef6dbe35a
--- /dev/null
+++ b/src/dflt-params/syntax/gen-func-expr.template
@@ -0,0 +1,43 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/generators/params-dflt-
+name: generator function expression
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, function*(/*{ params }*/) {
+ /*{ body }*/
+};
diff --git a/src/dflt-params/syntax/gen-meth.template b/src/dflt-params/syntax/gen-meth.template
new file mode 100644
index 0000000000..f9125cff59
--- /dev/null
+++ b/src/dflt-params/syntax/gen-meth.template
@@ -0,0 +1,50 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/method-definition/params-dflt-gen-meth-
+name: generator method
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, {
+ *method(/*{ params }*/) {
+ /*{ body }*/
+ }
+};
diff --git a/src/dflt-params/syntax/meth.template b/src/dflt-params/syntax/meth.template
new file mode 100644
index 0000000000..b9f3c83109
--- /dev/null
+++ b/src/dflt-params/syntax/meth.template
@@ -0,0 +1,47 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/method-definition/params-dflt-meth-
+name: method
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+0, {
+ method(/*{ params }*/) {
+ /*{ body }*/
+ }
+};
--
GitLab
From e5f1740411b7a32bf7dedf769d80cef000b41fb5 Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Thu, 2 Jun 2016 14:49:52 -0400
Subject: [PATCH 4/8] Generate tests
---
.../arrow-function/params-dflt-abrupt.js | 61 ++++++++++
.../params-dflt-arg-val-not-undefined.js | 82 +++++++++++++
.../params-dflt-arg-val-undefined.js | 65 +++++++++++
.../arrow-function/params-dflt-duplicates.js | 57 +++++++++
.../arrow-function/params-dflt-ref-later.js | 62 ++++++++++
.../arrow-function/params-dflt-ref-prior.js | 62 ++++++++++
.../arrow-function/params-dflt-ref-self.js | 62 ++++++++++
.../arrow-function/params-dflt-rest.js | 62 ++++++++++
.../class/params-dflt-gen-meth-abrupt.js | 86 ++++++++++++++
...ams-dflt-gen-meth-arg-val-not-undefined.js | 108 ++++++++++++++++++
.../params-dflt-gen-meth-arg-val-undefined.js | 91 +++++++++++++++
.../class/params-dflt-gen-meth-duplicates.js | 83 ++++++++++++++
.../class/params-dflt-gen-meth-ref-later.js | 87 ++++++++++++++
.../class/params-dflt-gen-meth-ref-prior.js | 88 ++++++++++++++
.../class/params-dflt-gen-meth-ref-self.js | 87 ++++++++++++++
.../class/params-dflt-gen-meth-rest.js | 88 ++++++++++++++
.../params-dflt-gen-meth-static-abrupt.js | 86 ++++++++++++++
...t-gen-meth-static-arg-val-not-undefined.js | 108 ++++++++++++++++++
...-dflt-gen-meth-static-arg-val-undefined.js | 91 +++++++++++++++
.../params-dflt-gen-meth-static-duplicates.js | 83 ++++++++++++++
.../params-dflt-gen-meth-static-ref-later.js | 87 ++++++++++++++
.../params-dflt-gen-meth-static-ref-prior.js | 88 ++++++++++++++
.../params-dflt-gen-meth-static-ref-self.js | 87 ++++++++++++++
.../class/params-dflt-gen-meth-static-rest.js | 88 ++++++++++++++
.../class/params-dflt-meth-abrupt.js | 83 ++++++++++++++
.../params-dflt-meth-arg-val-not-undefined.js | 105 +++++++++++++++++
.../params-dflt-meth-arg-val-undefined.js | 88 ++++++++++++++
.../class/params-dflt-meth-duplicates.js | 80 +++++++++++++
.../class/params-dflt-meth-ref-later.js | 84 ++++++++++++++
.../class/params-dflt-meth-ref-prior.js | 85 ++++++++++++++
.../class/params-dflt-meth-ref-self.js | 84 ++++++++++++++
.../class/params-dflt-meth-rest.js | 85 ++++++++++++++
.../class/params-dflt-meth-static-abrupt.js | 83 ++++++++++++++
...-dflt-meth-static-arg-val-not-undefined.js | 105 +++++++++++++++++
...rams-dflt-meth-static-arg-val-undefined.js | 88 ++++++++++++++
.../params-dflt-meth-static-duplicates.js | 80 +++++++++++++
.../params-dflt-meth-static-ref-later.js | 84 ++++++++++++++
.../params-dflt-meth-static-ref-prior.js | 85 ++++++++++++++
.../class/params-dflt-meth-static-ref-self.js | 84 ++++++++++++++
.../class/params-dflt-meth-static-rest.js | 85 ++++++++++++++
.../function/params-dflt-abrupt.js | 62 ++++++++++
.../params-dflt-arg-val-not-undefined.js | 84 ++++++++++++++
.../function/params-dflt-arg-val-undefined.js | 67 +++++++++++
.../function/params-dflt-duplicates.js | 58 ++++++++++
.../function/params-dflt-ref-later.js | 63 ++++++++++
.../function/params-dflt-ref-prior.js | 64 +++++++++++
.../function/params-dflt-ref-self.js | 63 ++++++++++
.../expressions/function/params-dflt-rest.js | 63 ++++++++++
.../generators/params-dflt-abrupt.js | 62 ++++++++++
.../params-dflt-arg-val-not-undefined.js | 84 ++++++++++++++
.../params-dflt-arg-val-undefined.js | 67 +++++++++++
.../generators/params-dflt-duplicates.js | 58 ++++++++++
.../generators/params-dflt-ref-later.js | 63 ++++++++++
.../generators/params-dflt-ref-prior.js | 64 +++++++++++
.../generators/params-dflt-ref-self.js | 63 ++++++++++
.../generators/params-dflt-rest.js | 63 ++++++++++
.../params-dflt-gen-meth-abrupt.js | 68 +++++++++++
...ams-dflt-gen-meth-arg-val-not-undefined.js | 90 +++++++++++++++
.../params-dflt-gen-meth-arg-val-undefined.js | 73 ++++++++++++
.../params-dflt-gen-meth-duplicates.js | 65 +++++++++++
.../params-dflt-gen-meth-ref-later.js | 69 +++++++++++
.../params-dflt-gen-meth-ref-prior.js | 70 ++++++++++++
.../params-dflt-gen-meth-ref-self.js | 69 +++++++++++
.../params-dflt-gen-meth-rest.js | 70 ++++++++++++
.../params-dflt-meth-abrupt.js | 65 +++++++++++
.../params-dflt-meth-arg-val-not-undefined.js | 87 ++++++++++++++
.../params-dflt-meth-arg-val-undefined.js | 70 ++++++++++++
.../params-dflt-meth-duplicates.js | 62 ++++++++++
.../params-dflt-meth-ref-later.js | 66 +++++++++++
.../params-dflt-meth-ref-prior.js | 67 +++++++++++
.../params-dflt-meth-ref-self.js | 66 +++++++++++
.../params-dflt-meth-rest.js | 67 +++++++++++
.../class/params-dflt-gen-meth-abrupt.js | 84 ++++++++++++++
...ams-dflt-gen-meth-arg-val-not-undefined.js | 106 +++++++++++++++++
.../params-dflt-gen-meth-arg-val-undefined.js | 89 +++++++++++++++
.../class/params-dflt-gen-meth-duplicates.js | 81 +++++++++++++
.../class/params-dflt-gen-meth-ref-later.js | 85 ++++++++++++++
.../class/params-dflt-gen-meth-ref-prior.js | 86 ++++++++++++++
.../class/params-dflt-gen-meth-ref-self.js | 85 ++++++++++++++
.../class/params-dflt-gen-meth-rest.js | 86 ++++++++++++++
.../params-dflt-gen-meth-static-abrupt.js | 85 ++++++++++++++
...t-gen-meth-static-arg-val-not-undefined.js | 106 +++++++++++++++++
...-dflt-gen-meth-static-arg-val-undefined.js | 89 +++++++++++++++
.../params-dflt-gen-meth-static-duplicates.js | 81 +++++++++++++
.../params-dflt-gen-meth-static-ref-later.js | 86 ++++++++++++++
.../params-dflt-gen-meth-static-ref-prior.js | 86 ++++++++++++++
.../params-dflt-gen-meth-static-ref-self.js | 86 ++++++++++++++
.../class/params-dflt-gen-meth-static-rest.js | 86 ++++++++++++++
.../class/params-dflt-meth-abrupt.js | 82 +++++++++++++
.../params-dflt-meth-arg-val-not-undefined.js | 104 +++++++++++++++++
.../params-dflt-meth-arg-val-undefined.js | 87 ++++++++++++++
.../class/params-dflt-meth-duplicates.js | 79 +++++++++++++
.../class/params-dflt-meth-ref-later.js | 83 ++++++++++++++
.../class/params-dflt-meth-ref-prior.js | 84 ++++++++++++++
.../class/params-dflt-meth-ref-self.js | 83 ++++++++++++++
.../statements/class/params-dflt-meth-rest.js | 84 ++++++++++++++
.../class/params-dflt-meth-static-abrupt.js | 82 +++++++++++++
...-dflt-meth-static-arg-val-not-undefined.js | 104 +++++++++++++++++
...rams-dflt-meth-static-arg-val-undefined.js | 87 ++++++++++++++
.../params-dflt-meth-static-duplicates.js | 79 +++++++++++++
.../params-dflt-meth-static-ref-later.js | 83 ++++++++++++++
.../params-dflt-meth-static-ref-prior.js | 84 ++++++++++++++
.../class/params-dflt-meth-static-ref-self.js | 83 ++++++++++++++
.../class/params-dflt-meth-static-rest.js | 84 ++++++++++++++
.../statements/function/params-dflt-abrupt.js | 61 ++++++++++
.../params-dflt-arg-val-not-undefined.js | 84 ++++++++++++++
.../function/params-dflt-arg-val-undefined.js | 67 +++++++++++
.../function/params-dflt-duplicates.js | 59 ++++++++++
.../function/params-dflt-ref-later.js | 62 ++++++++++
.../function/params-dflt-ref-prior.js | 64 +++++++++++
.../function/params-dflt-ref-self.js | 62 ++++++++++
.../statements/function/params-dflt-rest.js | 64 +++++++++++
.../generators/params-dflt-abrupt.js | 62 ++++++++++
.../params-dflt-arg-val-not-undefined.js | 83 ++++++++++++++
.../params-dflt-arg-val-undefined.js | 66 +++++++++++
.../generators/params-dflt-duplicates.js | 58 ++++++++++
.../generators/params-dflt-ref-later.js | 63 ++++++++++
.../generators/params-dflt-ref-prior.js | 63 ++++++++++
.../generators/params-dflt-ref-self.js | 63 ++++++++++
.../statements/generators/params-dflt-rest.js | 63 ++++++++++
120 files changed, 9332 insertions(+)
create mode 100644 test/language/expressions/arrow-function/params-dflt-abrupt.js
create mode 100644 test/language/expressions/arrow-function/params-dflt-arg-val-not-undefined.js
create mode 100644 test/language/expressions/arrow-function/params-dflt-arg-val-undefined.js
create mode 100644 test/language/expressions/arrow-function/params-dflt-duplicates.js
create mode 100644 test/language/expressions/arrow-function/params-dflt-ref-later.js
create mode 100644 test/language/expressions/arrow-function/params-dflt-ref-prior.js
create mode 100644 test/language/expressions/arrow-function/params-dflt-ref-self.js
create mode 100644 test/language/expressions/arrow-function/params-dflt-rest.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-abrupt.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-arg-val-not-undefined.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-arg-val-undefined.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-duplicates.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-ref-later.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-ref-prior.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-ref-self.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-rest.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-abrupt.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-arg-val-not-undefined.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-arg-val-undefined.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-duplicates.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-ref-later.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-ref-prior.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-ref-self.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-rest.js
create mode 100644 test/language/expressions/class/params-dflt-meth-abrupt.js
create mode 100644 test/language/expressions/class/params-dflt-meth-arg-val-not-undefined.js
create mode 100644 test/language/expressions/class/params-dflt-meth-arg-val-undefined.js
create mode 100644 test/language/expressions/class/params-dflt-meth-duplicates.js
create mode 100644 test/language/expressions/class/params-dflt-meth-ref-later.js
create mode 100644 test/language/expressions/class/params-dflt-meth-ref-prior.js
create mode 100644 test/language/expressions/class/params-dflt-meth-ref-self.js
create mode 100644 test/language/expressions/class/params-dflt-meth-rest.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-abrupt.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-arg-val-not-undefined.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-arg-val-undefined.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-duplicates.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-ref-later.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-ref-prior.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-ref-self.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-rest.js
create mode 100644 test/language/expressions/function/params-dflt-abrupt.js
create mode 100644 test/language/expressions/function/params-dflt-arg-val-not-undefined.js
create mode 100644 test/language/expressions/function/params-dflt-arg-val-undefined.js
create mode 100644 test/language/expressions/function/params-dflt-duplicates.js
create mode 100644 test/language/expressions/function/params-dflt-ref-later.js
create mode 100644 test/language/expressions/function/params-dflt-ref-prior.js
create mode 100644 test/language/expressions/function/params-dflt-ref-self.js
create mode 100644 test/language/expressions/function/params-dflt-rest.js
create mode 100644 test/language/expressions/generators/params-dflt-abrupt.js
create mode 100644 test/language/expressions/generators/params-dflt-arg-val-not-undefined.js
create mode 100644 test/language/expressions/generators/params-dflt-arg-val-undefined.js
create mode 100644 test/language/expressions/generators/params-dflt-duplicates.js
create mode 100644 test/language/expressions/generators/params-dflt-ref-later.js
create mode 100644 test/language/expressions/generators/params-dflt-ref-prior.js
create mode 100644 test/language/expressions/generators/params-dflt-ref-self.js
create mode 100644 test/language/expressions/generators/params-dflt-rest.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-abrupt.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-arg-val-not-undefined.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-arg-val-undefined.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-duplicates.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-later.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-prior.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-self.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-rest.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-abrupt.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-arg-val-not-undefined.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-arg-val-undefined.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-duplicates.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-ref-later.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-ref-prior.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-ref-self.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-rest.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-abrupt.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-arg-val-not-undefined.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-arg-val-undefined.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-duplicates.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-ref-later.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-ref-prior.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-ref-self.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-rest.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-abrupt.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-arg-val-not-undefined.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-arg-val-undefined.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-duplicates.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-ref-later.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-ref-prior.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-ref-self.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-rest.js
create mode 100644 test/language/statements/class/params-dflt-meth-abrupt.js
create mode 100644 test/language/statements/class/params-dflt-meth-arg-val-not-undefined.js
create mode 100644 test/language/statements/class/params-dflt-meth-arg-val-undefined.js
create mode 100644 test/language/statements/class/params-dflt-meth-duplicates.js
create mode 100644 test/language/statements/class/params-dflt-meth-ref-later.js
create mode 100644 test/language/statements/class/params-dflt-meth-ref-prior.js
create mode 100644 test/language/statements/class/params-dflt-meth-ref-self.js
create mode 100644 test/language/statements/class/params-dflt-meth-rest.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-abrupt.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-arg-val-not-undefined.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-arg-val-undefined.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-duplicates.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-ref-later.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-ref-prior.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-ref-self.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-rest.js
create mode 100644 test/language/statements/function/params-dflt-abrupt.js
create mode 100644 test/language/statements/function/params-dflt-arg-val-not-undefined.js
create mode 100644 test/language/statements/function/params-dflt-arg-val-undefined.js
create mode 100644 test/language/statements/function/params-dflt-duplicates.js
create mode 100644 test/language/statements/function/params-dflt-ref-later.js
create mode 100644 test/language/statements/function/params-dflt-ref-prior.js
create mode 100644 test/language/statements/function/params-dflt-ref-self.js
create mode 100644 test/language/statements/function/params-dflt-rest.js
create mode 100644 test/language/statements/generators/params-dflt-abrupt.js
create mode 100644 test/language/statements/generators/params-dflt-arg-val-not-undefined.js
create mode 100644 test/language/statements/generators/params-dflt-arg-val-undefined.js
create mode 100644 test/language/statements/generators/params-dflt-duplicates.js
create mode 100644 test/language/statements/generators/params-dflt-ref-later.js
create mode 100644 test/language/statements/generators/params-dflt-ref-prior.js
create mode 100644 test/language/statements/generators/params-dflt-ref-self.js
create mode 100644 test/language/statements/generators/params-dflt-rest.js
diff --git a/test/language/expressions/arrow-function/params-dflt-abrupt.js b/test/language/expressions/arrow-function/params-dflt-abrupt.js
new file mode 100644
index 0000000000..04b7c2f954
--- /dev/null
+++ b/test/language/expressions/arrow-function/params-dflt-abrupt.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/arrow-function.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (arrow function expression)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = (_ = (function() { throw new Test262Error(); }())) => {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'arrow function body not evaluated');
diff --git a/test/language/expressions/arrow-function/params-dflt-arg-val-not-undefined.js b/test/language/expressions/arrow-function/params-dflt-arg-val-not-undefined.js
new file mode 100644
index 0000000000..317600ccec
--- /dev/null
+++ b/test/language/expressions/arrow-function/params-dflt-arg-val-not-undefined.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/arrow-function.template
+/*---
+description: Use of intializer when argument value is not `undefined` (arrow function expression)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var f;
+f = (aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) => {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+};
+
+f(false, '', NaN, 0, null, obj);
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/arrow-function/params-dflt-arg-val-undefined.js b/test/language/expressions/arrow-function/params-dflt-arg-val-undefined.js
new file mode 100644
index 0000000000..300537d3b2
--- /dev/null
+++ b/test/language/expressions/arrow-function/params-dflt-arg-val-undefined.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/arrow-function.template
+/*---
+description: Use of intializer when argument value is `undefined` (arrow function expression)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = (fromLiteral = 23, fromExpr = 45, fromHole = 99) => {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+};
+
+f(undefined, void 0);
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/params-dflt-duplicates.js b/test/language/expressions/arrow-function/params-dflt-duplicates.js
new file mode 100644
index 0000000000..8b338f7e42
--- /dev/null
+++ b/test/language/expressions/arrow-function/params-dflt-duplicates.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/arrow-function.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (arrow function expression)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, (x = 0, x) => {
+
+};
diff --git a/test/language/expressions/arrow-function/params-dflt-ref-later.js b/test/language/expressions/arrow-function/params-dflt-ref-later.js
new file mode 100644
index 0000000000..96789cbf65
--- /dev/null
+++ b/test/language/expressions/arrow-function/params-dflt-ref-later.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/arrow-function.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (arrow function expression)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = (x = y, y) => {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'arrow function body not evaluated');
diff --git a/test/language/expressions/arrow-function/params-dflt-ref-prior.js b/test/language/expressions/arrow-function/params-dflt-ref-prior.js
new file mode 100644
index 0000000000..b34679a104
--- /dev/null
+++ b/test/language/expressions/arrow-function/params-dflt-ref-prior.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/arrow-function.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (arrow function expression)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = (x, y = x, z = y) => {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+};
+
+f(3);
+assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
diff --git a/test/language/expressions/arrow-function/params-dflt-ref-self.js b/test/language/expressions/arrow-function/params-dflt-ref-self.js
new file mode 100644
index 0000000000..8f45c38968
--- /dev/null
+++ b/test/language/expressions/arrow-function/params-dflt-ref-self.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/arrow-function.template
+/*---
+description: Referencing a parameter from within its own initializer (arrow function expression)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = (x = x) => {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'arrow function body not evaluated');
diff --git a/test/language/expressions/arrow-function/params-dflt-rest.js b/test/language/expressions/arrow-function/params-dflt-rest.js
new file mode 100644
index 0000000000..5981599564
--- /dev/null
+++ b/test/language/expressions/arrow-function/params-dflt-rest.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/arrow-function.template
+/*---
+description: RestParameter does not support an initializer (arrow function expression)
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+es6id: 14.2.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ArrowFunction : ArrowParameters => ConciseBody
+
+ [...]
+ 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, (...x = []) => {
+
+};
diff --git a/test/language/expressions/class/params-dflt-gen-meth-abrupt.js b/test/language/expressions/class/params-dflt-gen-meth-abrupt.js
new file mode 100644
index 0000000000..889bd23139
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-abrupt.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/cls-expr-gen-meth.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(Test262Error, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-arg-val-not-undefined.js b/test/language/expressions/class/params-dflt-gen-meth-arg-val-not-undefined.js
new file mode 100644
index 0000000000..68e84f1551
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-arg-val-not-undefined.js
@@ -0,0 +1,108 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/cls-expr-gen-meth.template
+/*---
+description: Use of intializer when argument value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var C = class {
+ *method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(false, '', NaN, 0, null, obj).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-arg-val-undefined.js b/test/language/expressions/class/params-dflt-gen-meth-arg-val-undefined.js
new file mode 100644
index 0000000000..5a412e0b52
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-arg-val-undefined.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/cls-expr-gen-meth.template
+/*---
+description: Use of intializer when argument value is `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ *method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(undefined, void 0).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-duplicates.js b/test/language/expressions/class/params-dflt-gen-meth-duplicates.js
new file mode 100644
index 0000000000..64e8a6de67
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-duplicates.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/cls-expr-gen-meth.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, class {
+ *method(x = 0, x) {
+
+ }
+};
diff --git a/test/language/expressions/class/params-dflt-gen-meth-ref-later.js b/test/language/expressions/class/params-dflt-gen-meth-ref-later.js
new file mode 100644
index 0000000000..8187aab07a
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-ref-later.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/cls-expr-gen-meth.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ *method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-ref-prior.js b/test/language/expressions/class/params-dflt-gen-meth-ref-prior.js
new file mode 100644
index 0000000000..e5a098a17a
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-ref-prior.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/cls-expr-gen-meth.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ *method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(3).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-ref-self.js b/test/language/expressions/class/params-dflt-gen-meth-ref-self.js
new file mode 100644
index 0000000000..35ee467af1
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-ref-self.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/cls-expr-gen-meth.template
+/*---
+description: Referencing a parameter from within its own initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ *method(x = x) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-rest.js b/test/language/expressions/class/params-dflt-gen-meth-rest.js
new file mode 100644
index 0000000000..3047f2288f
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-rest.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/cls-expr-gen-meth.template
+/*---
+description: RestParameter does not support an initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, class {
+ *method(...x = []) {
+
+ }
+};
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-abrupt.js b/test/language/expressions/class/params-dflt-gen-meth-static-abrupt.js
new file mode 100644
index 0000000000..c0ec1c62b9
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-abrupt.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/cls-expr-gen-meth-static.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-arg-val-not-undefined.js b/test/language/expressions/class/params-dflt-gen-meth-static-arg-val-not-undefined.js
new file mode 100644
index 0000000000..5908b88cb9
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-arg-val-not-undefined.js
@@ -0,0 +1,108 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/cls-expr-gen-meth-static.template
+/*---
+description: Use of intializer when argument value is not `undefined` (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var C = class {
+ static *method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(false, '', NaN, 0, null, obj).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-arg-val-undefined.js b/test/language/expressions/class/params-dflt-gen-meth-static-arg-val-undefined.js
new file mode 100644
index 0000000000..c5312c7bdf
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-arg-val-undefined.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/cls-expr-gen-meth-static.template
+/*---
+description: Use of intializer when argument value is `undefined` (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(undefined, void 0).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-duplicates.js b/test/language/expressions/class/params-dflt-gen-meth-static-duplicates.js
new file mode 100644
index 0000000000..eb5663a6b3
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-duplicates.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/cls-expr-gen-meth-static.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, class {
+ static *method(x = 0, x) {
+
+ }
+};
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-ref-later.js b/test/language/expressions/class/params-dflt-gen-meth-static-ref-later.js
new file mode 100644
index 0000000000..41da2d30d5
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-ref-later.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/cls-expr-gen-meth-static.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ static *method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-ref-prior.js b/test/language/expressions/class/params-dflt-gen-meth-static-ref-prior.js
new file mode 100644
index 0000000000..993d308096
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-ref-prior.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/cls-expr-gen-meth-static.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ static *method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+};
+
+C.method(3).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-ref-self.js b/test/language/expressions/class/params-dflt-gen-meth-static-ref-self.js
new file mode 100644
index 0000000000..2d5c619c37
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-ref-self.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/cls-expr-gen-meth-static.template
+/*---
+description: Referencing a parameter from within its own initializer (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ static *method(x = x) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-rest.js b/test/language/expressions/class/params-dflt-gen-meth-static-rest.js
new file mode 100644
index 0000000000..92a5a6fffd
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-rest.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/cls-expr-gen-meth-static.template
+/*---
+description: RestParameter does not support an initializer (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, class {
+ static *method(...x = []) {
+
+ }
+};
diff --git a/test/language/expressions/class/params-dflt-meth-abrupt.js b/test/language/expressions/class/params-dflt-meth-abrupt.js
new file mode 100644
index 0000000000..7e0d921f7e
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-abrupt.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/cls-expr-meth.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(Test262Error, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-meth-arg-val-not-undefined.js b/test/language/expressions/class/params-dflt-meth-arg-val-not-undefined.js
new file mode 100644
index 0000000000..792198b412
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-arg-val-not-undefined.js
@@ -0,0 +1,105 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/cls-expr-meth.template
+/*---
+description: Use of intializer when argument value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var C = class {
+ method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(false, '', NaN, 0, null, obj);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/class/params-dflt-meth-arg-val-undefined.js b/test/language/expressions/class/params-dflt-meth-arg-val-undefined.js
new file mode 100644
index 0000000000..e9a40bd677
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-arg-val-undefined.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/cls-expr-meth.template
+/*---
+description: Use of intializer when argument value is `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-meth-duplicates.js b/test/language/expressions/class/params-dflt-meth-duplicates.js
new file mode 100644
index 0000000000..d7f7bf30ce
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-duplicates.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/cls-expr-meth.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, class {
+ method(x = 0, x) {
+
+ }
+};
diff --git a/test/language/expressions/class/params-dflt-meth-ref-later.js b/test/language/expressions/class/params-dflt-meth-ref-later.js
new file mode 100644
index 0000000000..ca04f536dc
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-ref-later.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/cls-expr-meth.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-meth-ref-prior.js b/test/language/expressions/class/params-dflt-meth-ref-prior.js
new file mode 100644
index 0000000000..eceb7cd01c
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-ref-prior.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/cls-expr-meth.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(3);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-meth-ref-self.js b/test/language/expressions/class/params-dflt-meth-ref-self.js
new file mode 100644
index 0000000000..7ec1a9bb96
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-ref-self.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/cls-expr-meth.template
+/*---
+description: Referencing a parameter from within its own initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ method(x = x) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-meth-rest.js b/test/language/expressions/class/params-dflt-meth-rest.js
new file mode 100644
index 0000000000..20e2a79ec3
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-rest.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/cls-expr-meth.template
+/*---
+description: RestParameter does not support an initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, class {
+ method(...x = []) {
+
+ }
+};
diff --git a/test/language/expressions/class/params-dflt-meth-static-abrupt.js b/test/language/expressions/class/params-dflt-meth-static-abrupt.js
new file mode 100644
index 0000000000..4c7724491f
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-abrupt.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/cls-expr-meth-static.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-meth-static-arg-val-not-undefined.js b/test/language/expressions/class/params-dflt-meth-static-arg-val-not-undefined.js
new file mode 100644
index 0000000000..5a0a0c52d6
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-arg-val-not-undefined.js
@@ -0,0 +1,105 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/cls-expr-meth-static.template
+/*---
+description: Use of intializer when argument value is not `undefined` (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var C = class {
+ static method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(false, '', NaN, 0, null, obj);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/class/params-dflt-meth-static-arg-val-undefined.js b/test/language/expressions/class/params-dflt-meth-static-arg-val-undefined.js
new file mode 100644
index 0000000000..13ac0287fe
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-arg-val-undefined.js
@@ -0,0 +1,88 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/cls-expr-meth-static.template
+/*---
+description: Use of intializer when argument value is `undefined` (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var C = class {
+ static method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-meth-static-duplicates.js b/test/language/expressions/class/params-dflt-meth-static-duplicates.js
new file mode 100644
index 0000000000..6d68a6a053
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-duplicates.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/cls-expr-meth-static.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, class {
+ static method(x = 0, x) {
+
+ }
+};
diff --git a/test/language/expressions/class/params-dflt-meth-static-ref-later.js b/test/language/expressions/class/params-dflt-meth-static-ref-later.js
new file mode 100644
index 0000000000..a28ef9f809
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-ref-later.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/cls-expr-meth-static.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ static method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-meth-static-ref-prior.js b/test/language/expressions/class/params-dflt-meth-static-ref-prior.js
new file mode 100644
index 0000000000..cf8be79437
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-ref-prior.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/cls-expr-meth-static.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ static method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+};
+
+C.method(3);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-meth-static-ref-self.js b/test/language/expressions/class/params-dflt-meth-static-ref-self.js
new file mode 100644
index 0000000000..93a1ad3252
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-ref-self.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/cls-expr-meth-static.template
+/*---
+description: Referencing a parameter from within its own initializer (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var C = class {
+ static method(x = x) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/class/params-dflt-meth-static-rest.js b/test/language/expressions/class/params-dflt-meth-static-rest.js
new file mode 100644
index 0000000000..1772004b57
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-rest.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/cls-expr-meth-static.template
+/*---
+description: RestParameter does not support an initializer (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, class {
+ static method(...x = []) {
+
+ }
+};
diff --git a/test/language/expressions/function/params-dflt-abrupt.js b/test/language/expressions/function/params-dflt-abrupt.js
new file mode 100644
index 0000000000..8fbc1c7fd6
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-abrupt.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/func-expr.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
diff --git a/test/language/expressions/function/params-dflt-arg-val-not-undefined.js b/test/language/expressions/function/params-dflt-arg-val-not-undefined.js
new file mode 100644
index 0000000000..3a1604d8b3
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-arg-val-not-undefined.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/func-expr.template
+/*---
+description: Use of intializer when argument value is not `undefined` (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var f;
+f = function(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+};
+
+f(false, '', NaN, 0, null, obj);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/function/params-dflt-arg-val-undefined.js b/test/language/expressions/function/params-dflt-arg-val-undefined.js
new file mode 100644
index 0000000000..cec9fa0a13
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-arg-val-undefined.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/func-expr.template
+/*---
+description: Use of intializer when argument value is `undefined` (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+};
+
+f(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/params-dflt-duplicates.js b/test/language/expressions/function/params-dflt-duplicates.js
new file mode 100644
index 0000000000..2d98b532f7
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-duplicates.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/func-expr.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, function(x = 0, x) {
+
+};
diff --git a/test/language/expressions/function/params-dflt-ref-later.js b/test/language/expressions/function/params-dflt-ref-later.js
new file mode 100644
index 0000000000..0e1122a564
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-ref-later.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/func-expr.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = function(x = y, y) {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
diff --git a/test/language/expressions/function/params-dflt-ref-prior.js b/test/language/expressions/function/params-dflt-ref-prior.js
new file mode 100644
index 0000000000..0d6619d5ca
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-ref-prior.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/func-expr.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = function(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+};
+
+f(3);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/params-dflt-ref-self.js b/test/language/expressions/function/params-dflt-ref-self.js
new file mode 100644
index 0000000000..0e1f974f27
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-ref-self.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/func-expr.template
+/*---
+description: Referencing a parameter from within its own initializer (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = function(x = x) {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
diff --git a/test/language/expressions/function/params-dflt-rest.js b/test/language/expressions/function/params-dflt-rest.js
new file mode 100644
index 0000000000..9c837d7eca
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-rest.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/func-expr.template
+/*---
+description: RestParameter does not support an initializer (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, function(...x = []) {
+
+};
diff --git a/test/language/expressions/generators/params-dflt-abrupt.js b/test/language/expressions/generators/params-dflt-abrupt.js
new file mode 100644
index 0000000000..ed1b7d6191
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-abrupt.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/gen-func-expr.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(Test262Error, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'generator function body not evaluated');
diff --git a/test/language/expressions/generators/params-dflt-arg-val-not-undefined.js b/test/language/expressions/generators/params-dflt-arg-val-not-undefined.js
new file mode 100644
index 0000000000..7761519475
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-arg-val-not-undefined.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/gen-func-expr.template
+/*---
+description: Use of intializer when argument value is not `undefined` (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var f;
+f = function*(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+};
+
+f(false, '', NaN, 0, null, obj).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/generators/params-dflt-arg-val-undefined.js b/test/language/expressions/generators/params-dflt-arg-val-undefined.js
new file mode 100644
index 0000000000..9c1802394d
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-arg-val-undefined.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/gen-func-expr.template
+/*---
+description: Use of intializer when argument value is `undefined` (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var f;
+f = function*(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+};
+
+f(undefined, void 0).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/params-dflt-duplicates.js b/test/language/expressions/generators/params-dflt-duplicates.js
new file mode 100644
index 0000000000..e3f678e6de
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-duplicates.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/gen-func-expr.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, function*(x = 0, x) {
+
+};
diff --git a/test/language/expressions/generators/params-dflt-ref-later.js b/test/language/expressions/generators/params-dflt-ref-later.js
new file mode 100644
index 0000000000..14d668116e
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-ref-later.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/gen-func-expr.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = function*(x = y, y) {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'generator function body not evaluated');
diff --git a/test/language/expressions/generators/params-dflt-ref-prior.js b/test/language/expressions/generators/params-dflt-ref-prior.js
new file mode 100644
index 0000000000..af750a8dcb
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-ref-prior.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/gen-func-expr.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = function*(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+};
+
+f(3).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/params-dflt-ref-self.js b/test/language/expressions/generators/params-dflt-ref-self.js
new file mode 100644
index 0000000000..8cf2c9461c
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-ref-self.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/gen-func-expr.template
+/*---
+description: Referencing a parameter from within its own initializer (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var f;
+f = function*(x = x) {
+
+ callCount = callCount + 1;
+};
+
+assert.throws(ReferenceError, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'generator function body not evaluated');
diff --git a/test/language/expressions/generators/params-dflt-rest.js b/test/language/expressions/generators/params-dflt-rest.js
new file mode 100644
index 0000000000..132b5c3ca7
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-rest.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/gen-func-expr.template
+/*---
+description: RestParameter does not support an initializer (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, function*(...x = []) {
+
+};
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-abrupt.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-abrupt.js
new file mode 100644
index 0000000000..47af741479
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-abrupt.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/gen-meth.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+assert.sameValue(callCount, 0, 'generator method body not evaluated');
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-arg-val-not-undefined.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-arg-val-not-undefined.js
new file mode 100644
index 0000000000..469ff9fb43
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-arg-val-not-undefined.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/gen-meth.template
+/*---
+description: Use of intializer when argument value is not `undefined` (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var obj = {
+ *method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(false, '', NaN, 0, null, obj).next();
+
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-arg-val-undefined.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-arg-val-undefined.js
new file mode 100644
index 0000000000..6ad5e3af25
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-arg-val-undefined.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/gen-meth.template
+/*---
+description: Use of intializer when argument value is `undefined` (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ *method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(undefined, void 0).next();
+
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-duplicates.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-duplicates.js
new file mode 100644
index 0000000000..254363d98b
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-duplicates.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/gen-meth.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, {
+ *method(x = 0, x) {
+
+ }
+};
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-later.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-later.js
new file mode 100644
index 0000000000..d729ae01b1
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-later.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/gen-meth.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var obj = {
+ *method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
+assert.sameValue(callCount, 0, 'generator method body not evaluated');
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-prior.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-prior.js
new file mode 100644
index 0000000000..c0b3ded9da
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-prior.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/gen-meth.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var obj = {
+ *method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(3).next();
+
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-self.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-self.js
new file mode 100644
index 0000000000..2c0e653635
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-self.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/gen-meth.template
+/*---
+description: Referencing a parameter from within its own initializer (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var obj = {
+ *method(x = x) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
+assert.sameValue(callCount, 0, 'generator method body not evaluated');
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-rest.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-rest.js
new file mode 100644
index 0000000000..6e313f186e
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/gen-meth.template
+/*---
+description: RestParameter does not support an initializer (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, {
+ *method(...x = []) {
+
+ }
+};
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-abrupt.js b/test/language/expressions/object/method-definition/params-dflt-meth-abrupt.js
new file mode 100644
index 0000000000..ceea6067b7
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-abrupt.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/meth.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(Test262Error, function() {
+ obj.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-arg-val-not-undefined.js b/test/language/expressions/object/method-definition/params-dflt-meth-arg-val-not-undefined.js
new file mode 100644
index 0000000000..4d8f4f3af7
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-arg-val-not-undefined.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/meth.template
+/*---
+description: Use of intializer when argument value is not `undefined` (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+var obj = {
+ method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(false, '', NaN, 0, null, obj);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-arg-val-undefined.js b/test/language/expressions/object/method-definition/params-dflt-meth-arg-val-undefined.js
new file mode 100644
index 0000000000..c95f192e47
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-arg-val-undefined.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/meth.template
+/*---
+description: Use of intializer when argument value is `undefined` (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+var obj = {
+ method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-duplicates.js b/test/language/expressions/object/method-definition/params-dflt-meth-duplicates.js
new file mode 100644
index 0000000000..3f996e27d3
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-duplicates.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/meth.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+0, {
+ method(x = 0, x) {
+
+ }
+};
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-ref-later.js b/test/language/expressions/object/method-definition/params-dflt-meth-ref-later.js
new file mode 100644
index 0000000000..e1fb94fbfd
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-ref-later.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/meth.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var obj = {
+ method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-ref-prior.js b/test/language/expressions/object/method-definition/params-dflt-meth-ref-prior.js
new file mode 100644
index 0000000000..7b221b18d4
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-ref-prior.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/meth.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var obj = {
+ method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(3);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-ref-self.js b/test/language/expressions/object/method-definition/params-dflt-meth-ref-self.js
new file mode 100644
index 0000000000..a260573c96
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-ref-self.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/meth.template
+/*---
+description: Referencing a parameter from within its own initializer (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+flags: [generated]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+var obj = {
+ method(x = x) {
+
+ callCount = callCount + 1;
+ }
+};
+
+assert.throws(ReferenceError, function() {
+ obj.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-rest.js b/test/language/expressions/object/method-definition/params-dflt-meth-rest.js
new file mode 100644
index 0000000000..258dabf587
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-rest.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/meth.template
+/*---
+description: RestParameter does not support an initializer (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+0, {
+ method(...x = []) {
+
+ }
+};
diff --git a/test/language/statements/class/params-dflt-gen-meth-abrupt.js b/test/language/statements/class/params-dflt-gen-meth-abrupt.js
new file mode 100644
index 0000000000..e13f949a65
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-abrupt.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/cls-decl-gen-meth.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(Test262Error, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-gen-meth-arg-val-not-undefined.js b/test/language/statements/class/params-dflt-gen-meth-arg-val-not-undefined.js
new file mode 100644
index 0000000000..34cca4966c
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-arg-val-not-undefined.js
@@ -0,0 +1,106 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/cls-decl-gen-meth.template
+/*---
+description: Use of intializer when argument value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+class C {
+ *method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(false, '', NaN, 0, null, obj).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/statements/class/params-dflt-gen-meth-arg-val-undefined.js b/test/language/statements/class/params-dflt-gen-meth-arg-val-undefined.js
new file mode 100644
index 0000000000..c37777c163
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-arg-val-undefined.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/cls-decl-gen-meth.template
+/*---
+description: Use of intializer when argument value is `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ *method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(undefined, void 0).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-gen-meth-duplicates.js b/test/language/statements/class/params-dflt-gen-meth-duplicates.js
new file mode 100644
index 0000000000..332f0623f0
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-duplicates.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/cls-decl-gen-meth.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+class C {
+ *method(x = 0, x) {
+
+ }
+}
diff --git a/test/language/statements/class/params-dflt-gen-meth-ref-later.js b/test/language/statements/class/params-dflt-gen-meth-ref-later.js
new file mode 100644
index 0000000000..9135d8693d
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-ref-later.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/cls-decl-gen-meth.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ *method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(ReferenceError, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-gen-meth-ref-prior.js b/test/language/statements/class/params-dflt-gen-meth-ref-prior.js
new file mode 100644
index 0000000000..669e36b06e
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-ref-prior.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/cls-decl-gen-meth.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ *method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(3).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-gen-meth-ref-self.js b/test/language/statements/class/params-dflt-gen-meth-ref-self.js
new file mode 100644
index 0000000000..d222690a9f
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-ref-self.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/cls-decl-gen-meth.template
+/*---
+description: Referencing a parameter from within its own initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ *method(x = x) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(ReferenceError, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-gen-meth-rest.js b/test/language/statements/class/params-dflt-gen-meth-rest.js
new file mode 100644
index 0000000000..29a37231a0
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-rest.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/cls-decl-gen-meth.template
+/*---
+description: RestParameter does not support an initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+class C {
+ *method(...x = []) {
+
+ }
+}
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-abrupt.js b/test/language/statements/class/params-dflt-gen-meth-static-abrupt.js
new file mode 100644
index 0000000000..509c791b3c
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-abrupt.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/cls-decl-gen-meth-static.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-arg-val-not-undefined.js b/test/language/statements/class/params-dflt-gen-meth-static-arg-val-not-undefined.js
new file mode 100644
index 0000000000..b90ad27f4b
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-arg-val-not-undefined.js
@@ -0,0 +1,106 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/cls-decl-gen-meth-static.template
+/*---
+description: Use of intializer when argument value is not `undefined` (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+class C {
+ static *method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+}
+
+C.method(false, '', NaN, 0, null, obj).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-arg-val-undefined.js b/test/language/statements/class/params-dflt-gen-meth-static-arg-val-undefined.js
new file mode 100644
index 0000000000..a1f02fb247
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-arg-val-undefined.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/cls-decl-gen-meth-static.template
+/*---
+description: Use of intializer when argument value is `undefined` (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static *method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+}
+
+C.method(undefined, void 0).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-duplicates.js b/test/language/statements/class/params-dflt-gen-meth-static-duplicates.js
new file mode 100644
index 0000000000..f7c866e762
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-duplicates.js
@@ -0,0 +1,81 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/cls-decl-gen-meth-static.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+class C {
+ static *method(x = 0, x) {
+
+ }
+}
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-ref-later.js b/test/language/statements/class/params-dflt-gen-meth-static-ref-later.js
new file mode 100644
index 0000000000..54e345bd8f
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-ref-later.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/cls-decl-gen-meth-static.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ static *method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
+
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-ref-prior.js b/test/language/statements/class/params-dflt-gen-meth-static-ref-prior.js
new file mode 100644
index 0000000000..2eb401b3f2
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-ref-prior.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/cls-decl-gen-meth-static.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ static *method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+}
+
+C.method(3).next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-ref-self.js b/test/language/statements/class/params-dflt-gen-meth-static-ref-self.js
new file mode 100644
index 0000000000..0832563011
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-ref-self.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/cls-decl-gen-meth-static.template
+/*---
+description: Referencing a parameter from within its own initializer (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ static *method(x = x) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
+
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-rest.js b/test/language/statements/class/params-dflt-gen-meth-static-rest.js
new file mode 100644
index 0000000000..61fd2b4525
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-rest.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/cls-decl-gen-meth-static.template
+/*---
+description: RestParameter does not support an initializer (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+class C {
+ static *method(...x = []) {
+
+ }
+}
diff --git a/test/language/statements/class/params-dflt-meth-abrupt.js b/test/language/statements/class/params-dflt-meth-abrupt.js
new file mode 100644
index 0000000000..a05ce4108e
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-abrupt.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/cls-decl-meth.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(Test262Error, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-meth-arg-val-not-undefined.js b/test/language/statements/class/params-dflt-meth-arg-val-not-undefined.js
new file mode 100644
index 0000000000..49ee863364
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-arg-val-not-undefined.js
@@ -0,0 +1,104 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/cls-decl-meth.template
+/*---
+description: Use of intializer when argument value is not `undefined` (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+class C {
+ method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(false, '', NaN, 0, null, obj);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/statements/class/params-dflt-meth-arg-val-undefined.js b/test/language/statements/class/params-dflt-meth-arg-val-undefined.js
new file mode 100644
index 0000000000..f290c6f245
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-arg-val-undefined.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/cls-decl-meth.template
+/*---
+description: Use of intializer when argument value is `undefined` (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-meth-duplicates.js b/test/language/statements/class/params-dflt-meth-duplicates.js
new file mode 100644
index 0000000000..80ec29e6e0
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-duplicates.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/cls-decl-meth.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+class C {
+ method(x = 0, x) {
+
+ }
+}
diff --git a/test/language/statements/class/params-dflt-meth-ref-later.js b/test/language/statements/class/params-dflt-meth-ref-later.js
new file mode 100644
index 0000000000..f097abbbdf
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-ref-later.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/cls-decl-meth.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(ReferenceError, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-meth-ref-prior.js b/test/language/statements/class/params-dflt-meth-ref-prior.js
new file mode 100644
index 0000000000..82f9ef21f3
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-ref-prior.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/cls-decl-meth.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(3);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-meth-ref-self.js b/test/language/statements/class/params-dflt-meth-ref-self.js
new file mode 100644
index 0000000000..cf5282510e
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-ref-self.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/cls-decl-meth.template
+/*---
+description: Referencing a parameter from within its own initializer (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ method(x = x) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(ReferenceError, function() {
+ C.prototype.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-meth-rest.js b/test/language/statements/class/params-dflt-meth-rest.js
new file mode 100644
index 0000000000..4a5c2530dc
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-rest.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/cls-decl-meth.template
+/*---
+description: RestParameter does not support an initializer (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+class C {
+ method(...x = []) {
+
+ }
+}
diff --git a/test/language/statements/class/params-dflt-meth-static-abrupt.js b/test/language/statements/class/params-dflt-meth-static-abrupt.js
new file mode 100644
index 0000000000..f9b8319dc3
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-abrupt.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/cls-decl-meth-static.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(Test262Error, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-meth-static-arg-val-not-undefined.js b/test/language/statements/class/params-dflt-meth-static-arg-val-not-undefined.js
new file mode 100644
index 0000000000..fe2d8391db
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-arg-val-not-undefined.js
@@ -0,0 +1,104 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/cls-decl-meth-static.template
+/*---
+description: Use of intializer when argument value is not `undefined` (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+class C {
+ static method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+ }
+}
+
+C.method(false, '', NaN, 0, null, obj);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/statements/class/params-dflt-meth-static-arg-val-undefined.js b/test/language/statements/class/params-dflt-meth-static-arg-val-undefined.js
new file mode 100644
index 0000000000..df22ab4032
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-arg-val-undefined.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/cls-decl-meth-static.template
+/*---
+description: Use of intializer when argument value is `undefined` (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+class C {
+ static method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+ }
+}
+
+C.method(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-meth-static-duplicates.js b/test/language/statements/class/params-dflt-meth-static-duplicates.js
new file mode 100644
index 0000000000..63eb7c0feb
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-duplicates.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/cls-decl-meth-static.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+class C {
+ static method(x = 0, x) {
+
+ }
+}
diff --git a/test/language/statements/class/params-dflt-meth-static-ref-later.js b/test/language/statements/class/params-dflt-meth-static-ref-later.js
new file mode 100644
index 0000000000..5ba90a1fb8
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-ref-later.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/cls-decl-meth-static.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ static method(x = y, y) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-meth-static-ref-prior.js b/test/language/statements/class/params-dflt-meth-static-ref-prior.js
new file mode 100644
index 0000000000..633f02f3b0
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-ref-prior.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/cls-decl-meth-static.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ static method(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+ }
+}
+
+C.method(3);
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-meth-static-ref-self.js b/test/language/statements/class/params-dflt-meth-static-ref-self.js
new file mode 100644
index 0000000000..47e295d5f1
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-ref-self.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/cls-decl-meth-static.template
+/*---
+description: Referencing a parameter from within its own initializer (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+class C {
+ static method(x = x) {
+
+ callCount = callCount + 1;
+ }
+}
+
+assert.throws(ReferenceError, function() {
+ C.method();
+});
+assert.sameValue(callCount, 0, 'method body not evaluated');
diff --git a/test/language/statements/class/params-dflt-meth-static-rest.js b/test/language/statements/class/params-dflt-meth-static-rest.js
new file mode 100644
index 0000000000..5d47e12dbc
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-rest.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/cls-decl-meth-static.template
+/*---
+description: RestParameter does not support an initializer (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+class C {
+ static method(...x = []) {
+
+ }
+}
diff --git a/test/language/statements/function/params-dflt-abrupt.js b/test/language/statements/function/params-dflt-abrupt.js
new file mode 100644
index 0000000000..7de9d77e55
--- /dev/null
+++ b/test/language/statements/function/params-dflt-abrupt.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/func-decl.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+}
+assert.throws(Test262Error, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
diff --git a/test/language/statements/function/params-dflt-arg-val-not-undefined.js b/test/language/statements/function/params-dflt-arg-val-not-undefined.js
new file mode 100644
index 0000000000..cd8937f37c
--- /dev/null
+++ b/test/language/statements/function/params-dflt-arg-val-not-undefined.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/func-decl.template
+/*---
+description: Use of intializer when argument value is not `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+function f(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+}
+
+f(false, '', NaN, 0, null, obj);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/statements/function/params-dflt-arg-val-undefined.js b/test/language/statements/function/params-dflt-arg-val-undefined.js
new file mode 100644
index 0000000000..5aebf35be0
--- /dev/null
+++ b/test/language/statements/function/params-dflt-arg-val-undefined.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/func-decl.template
+/*---
+description: Use of intializer when argument value is `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function f(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+}
+
+f(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/params-dflt-duplicates.js b/test/language/statements/function/params-dflt-duplicates.js
new file mode 100644
index 0000000000..8596f0c19a
--- /dev/null
+++ b/test/language/statements/function/params-dflt-duplicates.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/func-decl.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+function f(x = 0, x) {
+
+}
diff --git a/test/language/statements/function/params-dflt-ref-later.js b/test/language/statements/function/params-dflt-ref-later.js
new file mode 100644
index 0000000000..9bcd3e9388
--- /dev/null
+++ b/test/language/statements/function/params-dflt-ref-later.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/func-decl.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+function f(x = y, y) {
+
+ callCount = callCount + 1;
+}
+assert.throws(ReferenceError, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
diff --git a/test/language/statements/function/params-dflt-ref-prior.js b/test/language/statements/function/params-dflt-ref-prior.js
new file mode 100644
index 0000000000..972551976d
--- /dev/null
+++ b/test/language/statements/function/params-dflt-ref-prior.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/func-decl.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+function f(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+}
+
+f(3);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/params-dflt-ref-self.js b/test/language/statements/function/params-dflt-ref-self.js
new file mode 100644
index 0000000000..de76d71584
--- /dev/null
+++ b/test/language/statements/function/params-dflt-ref-self.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/func-decl.template
+/*---
+description: Referencing a parameter from within its own initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+function f(x = x) {
+
+ callCount = callCount + 1;
+}
+assert.throws(ReferenceError, function() {
+ f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
diff --git a/test/language/statements/function/params-dflt-rest.js b/test/language/statements/function/params-dflt-rest.js
new file mode 100644
index 0000000000..532ac9669f
--- /dev/null
+++ b/test/language/statements/function/params-dflt-rest.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/func-decl.template
+/*---
+description: RestParameter does not support an initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+function f(...x = []) {
+
+}
diff --git a/test/language/statements/generators/params-dflt-abrupt.js b/test/language/statements/generators/params-dflt-abrupt.js
new file mode 100644
index 0000000000..88aacc649c
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-abrupt.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/abrupt.case
+// - src/dflt-params/error/gen-func-decl.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f(_ = (function() { throw new Test262Error(); }())) {
+
+ callCount = callCount + 1;
+}
+
+assert.throws(Test262Error, function() {
+ f();
+});
+
+assert.sameValue(callCount, 0, 'generator function body not evaluated');
diff --git a/test/language/statements/generators/params-dflt-arg-val-not-undefined.js b/test/language/statements/generators/params-dflt-arg-val-not-undefined.js
new file mode 100644
index 0000000000..a4b38ac36a
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-arg-val-not-undefined.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-not-undefined.case
+// - src/dflt-params/default/gen-func-decl.template
+/*---
+description: Use of intializer when argument value is not `undefined` (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+function* f(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+ assert.sameValue(aFalse, false);
+ assert.sameValue(aString, '');
+ assert.sameValue(aNaN, NaN);
+ assert.sameValue(a0, 0);
+ assert.sameValue(aNull, null);
+ assert.sameValue(aObj, obj);
+ callCount = callCount + 1;
+}
+
+f(false, '', NaN, 0, null, obj).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
diff --git a/test/language/statements/generators/params-dflt-arg-val-undefined.js b/test/language/statements/generators/params-dflt-arg-val-undefined.js
new file mode 100644
index 0000000000..e675be80df
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-arg-val-undefined.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/arg-val-undefined.case
+// - src/dflt-params/default/gen-func-decl.template
+/*---
+description: Use of intializer when argument value is `undefined` (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+---*/
+
+var callCount = 0;
+function* f(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+}
+
+f(undefined, void 0).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/params-dflt-duplicates.js b/test/language/statements/generators/params-dflt-duplicates.js
new file mode 100644
index 0000000000..eb4c445943
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-duplicates.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/duplicates.case
+// - src/dflt-params/syntax/gen-func-decl.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.2 Static Semantics: Early Errors
+
+ StrictFormalParameters : FormalParameters
+
+ - It is a Syntax Error if BoundNames of FormalParameters contains any
+ duplicate elements.
+
+ FormalParameters : FormalParameterList
+
+ - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+ false and BoundNames of FormalParameterList contains any duplicate
+ elements.
+---*/
+
+function* f(x = 0, x) {
+
+}
diff --git a/test/language/statements/generators/params-dflt-ref-later.js b/test/language/statements/generators/params-dflt-ref-later.js
new file mode 100644
index 0000000000..6b988e5d18
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-ref-later.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-later.case
+// - src/dflt-params/error/gen-func-decl.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+function* f(x = y, y) {
+
+ callCount = callCount + 1;
+}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
+
+assert.sameValue(callCount, 0, 'generator function body not evaluated');
diff --git a/test/language/statements/generators/params-dflt-ref-prior.js b/test/language/statements/generators/params-dflt-ref-prior.js
new file mode 100644
index 0000000000..42a4e20cb6
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-ref-prior.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-prior.case
+// - src/dflt-params/default/gen-func-decl.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+function* f(x, y = x, z = y) {
+ assert.sameValue(x, 3, 'first argument value');
+ assert.sameValue(y, 3, 'second argument value');
+ assert.sameValue(z, 3, 'third argument value');
+ callCount = callCount + 1;
+}
+
+f(3).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/params-dflt-ref-self.js b/test/language/statements/generators/params-dflt-ref-self.js
new file mode 100644
index 0000000000..71c29e010e
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-ref-self.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/ref-self.case
+// - src/dflt-params/error/gen-func-decl.template
+/*---
+description: Referencing a parameter from within its own initializer (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+flags: [generated]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+var x = 0;
+
+var callCount = 0;
+function* f(x = x) {
+
+ callCount = callCount + 1;
+}
+
+assert.throws(ReferenceError, function() {
+ f();
+});
+
+assert.sameValue(callCount, 0, 'generator function body not evaluated');
diff --git a/test/language/statements/generators/params-dflt-rest.js b/test/language/statements/generators/params-dflt-rest.js
new file mode 100644
index 0000000000..c198c3f325
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-rest.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dflt-params/rest.case
+// - src/dflt-params/syntax/gen-func-decl.template
+/*---
+description: RestParameter does not support an initializer (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+flags: [generated]
+negative: SyntaxError
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1 Function Definitions
+
+ Syntax
+
+ FunctionRestParameter[Yield] :
+
+ BindingRestElement[?Yield]
+
+ 13.3.3 Destructuring Binding Patterns
+
+ Syntax
+
+ BindingRestElement[Yield] :
+
+ ...BindingIdentifier[?Yield]
+ ...BindingPattern[?Yield]
+
+---*/
+
+function* f(...x = []) {
+
+}
--
GitLab
From 7dcccfcca6e7999124233cc813781dae3d2e80b3 Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Thu, 2 Jun 2016 11:18:06 -0400
Subject: [PATCH 5/8] Add tests for use of `yield` in default parameters
---
.../arrow-function/param-dflt-yield-expr.js | 24 +++++++++++++++
.../param-dflt-yield-id-non-strict.js | 25 ++++++++++++++++
.../param-dflt-yield-id-strict.js | 17 +++++++++++
.../class/gen-method-param-dflt-yield.js | 23 +++++++++++++++
.../class/method-param-dflt-yield.js | 18 ++++++++++++
.../static-gen-method-param-dflt-yield.js | 23 +++++++++++++++
.../class/static-method-param-dflt-yield.js | 18 ++++++++++++
.../function/param-dflt-yield-non-strict.js | 27 +++++++++++++++++
.../function/param-dflt-yield-strict.js | 21 ++++++++++++++
.../generators/param-dflt-yield.js | 21 ++++++++++++++
.../class/gen-method-param-dflt-yield.js | 23 +++++++++++++++
.../statements/class/method-param-yield.js | 18 ++++++++++++
.../static-gen-method-param-dflt-yield.js | 23 +++++++++++++++
.../class/static-method-param-yield.js | 18 ++++++++++++
.../function/param-dflt-yield-non-strict.js | 29 +++++++++++++++++++
.../function/param-dflt-yield-strict.js | 21 ++++++++++++++
.../statements/generators/param-dflt-yield.js | 20 +++++++++++++
17 files changed, 369 insertions(+)
create mode 100644 test/language/expressions/arrow-function/param-dflt-yield-expr.js
create mode 100644 test/language/expressions/arrow-function/param-dflt-yield-id-non-strict.js
create mode 100644 test/language/expressions/arrow-function/param-dflt-yield-id-strict.js
create mode 100644 test/language/expressions/class/gen-method-param-dflt-yield.js
create mode 100644 test/language/expressions/class/method-param-dflt-yield.js
create mode 100644 test/language/expressions/class/static-gen-method-param-dflt-yield.js
create mode 100644 test/language/expressions/class/static-method-param-dflt-yield.js
create mode 100644 test/language/expressions/function/param-dflt-yield-non-strict.js
create mode 100644 test/language/expressions/function/param-dflt-yield-strict.js
create mode 100644 test/language/expressions/generators/param-dflt-yield.js
create mode 100644 test/language/statements/class/gen-method-param-dflt-yield.js
create mode 100644 test/language/statements/class/method-param-yield.js
create mode 100644 test/language/statements/class/static-gen-method-param-dflt-yield.js
create mode 100644 test/language/statements/class/static-method-param-yield.js
create mode 100644 test/language/statements/function/param-dflt-yield-non-strict.js
create mode 100644 test/language/statements/function/param-dflt-yield-strict.js
create mode 100644 test/language/statements/generators/param-dflt-yield.js
diff --git a/test/language/expressions/arrow-function/param-dflt-yield-expr.js b/test/language/expressions/arrow-function/param-dflt-yield-expr.js
new file mode 100644
index 0000000000..20e6786187
--- /dev/null
+++ b/test/language/expressions/arrow-function/param-dflt-yield-expr.js
@@ -0,0 +1,24 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-arrow-function-definitions
+es6id: 14.2
+description: >
+ The `yield` token is interpreted contextually outside of strict mode
+info: |
+ ArrowFunction[In, Yield] :
+
+ ArrowParameters[?Yield] [no LineTerminator here] => ConciseBody[?In]
+
+ 14.2.1 Static Semantics: Early Errors#
+
+ ArrowFunction : ArrowParameters=>ConciseBody
+
+ - It is a Syntax Error if ArrowParameters Contains YieldExpression is true.
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+function *g() {
+ (x = yield) => {};
+}
diff --git a/test/language/expressions/arrow-function/param-dflt-yield-id-non-strict.js b/test/language/expressions/arrow-function/param-dflt-yield-id-non-strict.js
new file mode 100644
index 0000000000..90ce97b2a7
--- /dev/null
+++ b/test/language/expressions/arrow-function/param-dflt-yield-id-non-strict.js
@@ -0,0 +1,25 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-arrow-function-definitions
+es6id: 14.2
+description: >
+ The `yield` token is interpreted as an IdentifierReference outside of strict
+ mode and outside of generator function bodies.
+info: |
+ ArrowFunction[In, Yield] :
+
+ ArrowParameters[?Yield] [no LineTerminator here] => ConciseBody[?In]
+features: [default-parameters]
+flags: [onlyStrict]
+negative: SyntaxError
+---*/
+
+var yield = 23;
+var f, paramValue;
+
+f = (x = yield) => { paramValue = x; };
+
+f();
+
+assert.sameValue(paramValue, 23);
diff --git a/test/language/expressions/arrow-function/param-dflt-yield-id-strict.js b/test/language/expressions/arrow-function/param-dflt-yield-id-strict.js
new file mode 100644
index 0000000000..0e84b4b3fd
--- /dev/null
+++ b/test/language/expressions/arrow-function/param-dflt-yield-id-strict.js
@@ -0,0 +1,17 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-arrow-function-definitions
+es6id: 14.2
+description: >
+ The `yield` token is interpreted as a FutureReservedWord within strict mode
+info: |
+ ArrowFunction[In, Yield] :
+
+ ArrowParameters[?Yield] [no LineTerminator here] => ConciseBody[?In]
+features: [default-parameters]
+flags: [onlyStrict]
+negative: SyntaxError
+---*/
+
+(x = yield) => {};
diff --git a/test/language/expressions/class/gen-method-param-dflt-yield.js b/test/language/expressions/class/gen-method-param-dflt-yield.js
new file mode 100644
index 0000000000..da350ddbba
--- /dev/null
+++ b/test/language/expressions/class/gen-method-param-dflt-yield.js
@@ -0,0 +1,23 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-generator-function-definitions
+es6id: 14.4
+description: >
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function
+info: |
+ GeneratorMethod[Yield]:
+
+ * PropertyName[?Yield] ( StrictFormalParameters[Yield] ) { GeneratorBody }
+
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function because any expressions that are part of FormalParameters are
+ evaluated before the resulting generator object is in a resumable state.
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+0, class {
+ *g(x = yield) {}
+};
diff --git a/test/language/expressions/class/method-param-dflt-yield.js b/test/language/expressions/class/method-param-dflt-yield.js
new file mode 100644
index 0000000000..378e0e02f0
--- /dev/null
+++ b/test/language/expressions/class/method-param-dflt-yield.js
@@ -0,0 +1,18 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-method-definitions
+es6id: 14.3
+description: >
+ YieldExpression cannot be used within the FormalParameters of a class method
+info: |
+ MethodDefinition[Yield] :
+
+ PropertyName[?Yield] ( StrictFormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+0, class {
+ m(x = yield) {}
+};
diff --git a/test/language/expressions/class/static-gen-method-param-dflt-yield.js b/test/language/expressions/class/static-gen-method-param-dflt-yield.js
new file mode 100644
index 0000000000..c24810c3bb
--- /dev/null
+++ b/test/language/expressions/class/static-gen-method-param-dflt-yield.js
@@ -0,0 +1,23 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-generator-function-definitions
+es6id: 14.4
+description: >
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function
+info: |
+ GeneratorMethod[Yield]:
+
+ * PropertyName[?Yield] ( StrictFormalParameters[Yield] ) { GeneratorBody }
+
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function because any expressions that are part of FormalParameters are
+ evaluated before the resulting generator object is in a resumable state.
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+0, class {
+ static *g(x = yield) {}
+};
diff --git a/test/language/expressions/class/static-method-param-dflt-yield.js b/test/language/expressions/class/static-method-param-dflt-yield.js
new file mode 100644
index 0000000000..a6b6d16acd
--- /dev/null
+++ b/test/language/expressions/class/static-method-param-dflt-yield.js
@@ -0,0 +1,18 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-method-definitions
+es6id: 14.3
+description: >
+ YieldExpression cannot be used within the FormalParameters of a class method
+info: |
+ MethodDefinition[Yield] :
+
+ PropertyName[?Yield] ( StrictFormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+0, class {
+ static m(x = yield) {}
+};
diff --git a/test/language/expressions/function/param-dflt-yield-non-strict.js b/test/language/expressions/function/param-dflt-yield-non-strict.js
new file mode 100644
index 0000000000..9149401c40
--- /dev/null
+++ b/test/language/expressions/function/param-dflt-yield-non-strict.js
@@ -0,0 +1,27 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions
+es6id: 14.1
+description: >
+ The `yield` token is interpreted as an IdentifierReference within a generator
+ and outside of strict mode
+info: |
+ FunctionExpression :
+ function BindingIdentifieropt ( FormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+flags: [noStrict]
+---*/
+
+var yield = 23;
+var paramValue;
+
+function *g() {
+ (function(x = yield) {
+ paramValue = x;
+ }());
+}
+
+g().next();
+
+assert.sameValue(paramValue, 23);
diff --git a/test/language/expressions/function/param-dflt-yield-strict.js b/test/language/expressions/function/param-dflt-yield-strict.js
new file mode 100644
index 0000000000..875973f963
--- /dev/null
+++ b/test/language/expressions/function/param-dflt-yield-strict.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions
+es6id: 14.1
+description: >
+ The `yield` token is interpreted as an IdentifierReference within a generator
+ and outside of strict mode
+info: |
+ FunctionExpression :
+ function BindingIdentifieropt ( FormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+flags: [onlyStrict]
+negative: SyntaxError
+---*/
+
+function *g() {
+ 0, function(x = yield) {
+ paramValue = x;
+ };
+}
diff --git a/test/language/expressions/generators/param-dflt-yield.js b/test/language/expressions/generators/param-dflt-yield.js
new file mode 100644
index 0000000000..98952a2974
--- /dev/null
+++ b/test/language/expressions/generators/param-dflt-yield.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-generator-function-definitions
+es6id: 14.4
+description: >
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function
+info: |
+ GeneratorExpression :
+
+ function * BindingIdentifier[Yield]opt ( FormalParameters[Yield] ) { GeneratorBody }
+
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function because any expressions that are part of FormalParameters are
+ evaluated before the resulting generator object is in a resumable state.
+features: [default-parameters]
+negative: SyntaxError
+---*/
+
+0, function*(x = yield) {};
diff --git a/test/language/statements/class/gen-method-param-dflt-yield.js b/test/language/statements/class/gen-method-param-dflt-yield.js
new file mode 100644
index 0000000000..708120b2b5
--- /dev/null
+++ b/test/language/statements/class/gen-method-param-dflt-yield.js
@@ -0,0 +1,23 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-generator-function-definitions
+es6id: 14.4
+description: >
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function
+info: |
+ GeneratorMethod[Yield]:
+
+ * PropertyName[?Yield] ( StrictFormalParameters[Yield] ) { GeneratorBody }
+
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function because any expressions that are part of FormalParameters are
+ evaluated before the resulting generator object is in a resumable state.
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+class C {
+ *g(x = yield) {}
+}
diff --git a/test/language/statements/class/method-param-yield.js b/test/language/statements/class/method-param-yield.js
new file mode 100644
index 0000000000..244c1e8945
--- /dev/null
+++ b/test/language/statements/class/method-param-yield.js
@@ -0,0 +1,18 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-method-definitions
+es6id: 14.3
+description: >
+ YieldExpression cannot be used within the FormalParameters of a class method
+info: |
+ MethodDefinition[Yield] :
+
+ PropertyName[?Yield] ( StrictFormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+class C {
+ m(x = yield) {}
+}
diff --git a/test/language/statements/class/static-gen-method-param-dflt-yield.js b/test/language/statements/class/static-gen-method-param-dflt-yield.js
new file mode 100644
index 0000000000..903c8eeba3
--- /dev/null
+++ b/test/language/statements/class/static-gen-method-param-dflt-yield.js
@@ -0,0 +1,23 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-generator-function-definitions
+es6id: 14.4
+description: >
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function
+info: |
+ GeneratorMethod[Yield]:
+
+ * PropertyName[?Yield] ( StrictFormalParameters[Yield] ) { GeneratorBody }
+
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function because any expressions that are part of FormalParameters are
+ evaluated before the resulting generator object is in a resumable state.
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+class C {
+ static *g(x = yield) {}
+}
diff --git a/test/language/statements/class/static-method-param-yield.js b/test/language/statements/class/static-method-param-yield.js
new file mode 100644
index 0000000000..be2fc13002
--- /dev/null
+++ b/test/language/statements/class/static-method-param-yield.js
@@ -0,0 +1,18 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-method-definitions
+es6id: 14.3
+description: >
+ YieldExpression cannot be used within the FormalParameters of a class method
+info: |
+ MethodDefinition[Yield] :
+
+ PropertyName[?Yield] ( StrictFormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+negative: SyntaxError
+---*/
+
+class C {
+ static m(x = yield) {}
+}
diff --git a/test/language/statements/function/param-dflt-yield-non-strict.js b/test/language/statements/function/param-dflt-yield-non-strict.js
new file mode 100644
index 0000000000..d04d8d5dd9
--- /dev/null
+++ b/test/language/statements/function/param-dflt-yield-non-strict.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions
+es6id: 14.1
+description: >
+ The `yield` token is interpreted as an IdentifierReference within a generator
+ and outside of strict mode
+info: |
+ FunctionDeclaration[Yield, Default] :
+ function BindingIdentifier[?Yield] ( FormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+flags: [noStrict]
+---*/
+
+var yield = 23;
+var paramValue;
+
+function *g() {
+ function f(x = yield) {
+ paramValue = x;
+ }
+
+ f();
+}
+
+g().next();
+
+assert.sameValue(paramValue, 23);
diff --git a/test/language/statements/function/param-dflt-yield-strict.js b/test/language/statements/function/param-dflt-yield-strict.js
new file mode 100644
index 0000000000..39a14ad1d4
--- /dev/null
+++ b/test/language/statements/function/param-dflt-yield-strict.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions
+es6id: 14.1
+description: >
+ The `yield` token is interpreted as an IdentifierReference within a generator
+ and outside of strict mode
+info: |
+ FunctionDeclaration[Yield, Default] :
+ function BindingIdentifier[?Yield] ( FormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+flags: [onlyStrict]
+negative: SyntaxError
+---*/
+
+function *g() {
+ function f(x = yield) {
+ paramValue = x;
+ }
+}
diff --git a/test/language/statements/generators/param-dflt-yield.js b/test/language/statements/generators/param-dflt-yield.js
new file mode 100644
index 0000000000..6df68b3beb
--- /dev/null
+++ b/test/language/statements/generators/param-dflt-yield.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-generator-function-definitions
+es6id: 14.4
+description: >
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function
+info: |
+ GeneratorDeclaration[Yield, Default] :
+ function * BindingIdentifier[?Yield] ( FormalParameters[Yield] ) { GeneratorBody }
+
+ YieldExpression cannot be used within the FormalParameters of a generator
+ function because any expressions that are part of FormalParameters are
+ evaluated before the resulting generator object is in a resumable state.
+features: [default-parameters]
+negative: SyntaxError
+---*/
+
+function* g(x = yield) {}
--
GitLab
From 7e3019e382bfd231f8e9c2506ea097d751b9d5e4 Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Tue, 31 May 2016 17:30:41 -0400
Subject: [PATCH 6/8] Add tests for function length with dflt parameters
---
.../default-parameters/function-length.js | 26 -------
.../expressions/arrow-function/length-dflt.js | 60 +++++++++++++++++
.../class/gen-method-length-dflt.js | 59 ++++++++++++++++
.../expressions/class/getter-param-dflt.js | 19 ++++++
.../expressions/class/method-length-dflt.js | 59 ++++++++++++++++
.../expressions/class/setter-length-dflt.js | 39 +++++++++++
.../class/static-method-length-dflt.js | 59 ++++++++++++++++
.../expressions/function/length-dflt.js | 60 +++++++++++++++++
.../expressions/generators/length-dflt.js | 60 +++++++++++++++++
.../expressions/object/getter-param-dflt.js | 19 ++++++
.../generator-length-dflt.js | 60 +++++++++++++++++
.../method-definition/name-length-dflt.js | 60 +++++++++++++++++
.../expressions/object/setter-length-dflt.js | 39 +++++++++++
.../class/gen-method-length-dflt.js | 67 +++++++++++++++++++
.../statements/class/getter-param-dflt.js | 19 ++++++
.../statements/class/method-length-dflt.js | 67 +++++++++++++++++++
.../statements/class/setter-length-dflt.js | 39 +++++++++++
.../class/static-method-length-dflt.js | 67 +++++++++++++++++++
.../statements/function/length-dflt.js | 60 +++++++++++++++++
.../statements/generators/length-dflt.js | 60 +++++++++++++++++
20 files changed, 972 insertions(+), 26 deletions(-)
delete mode 100644 test/language/default-parameters/function-length.js
create mode 100644 test/language/expressions/arrow-function/length-dflt.js
create mode 100644 test/language/expressions/class/gen-method-length-dflt.js
create mode 100644 test/language/expressions/class/getter-param-dflt.js
create mode 100644 test/language/expressions/class/method-length-dflt.js
create mode 100644 test/language/expressions/class/setter-length-dflt.js
create mode 100644 test/language/expressions/class/static-method-length-dflt.js
create mode 100644 test/language/expressions/function/length-dflt.js
create mode 100644 test/language/expressions/generators/length-dflt.js
create mode 100644 test/language/expressions/object/getter-param-dflt.js
create mode 100644 test/language/expressions/object/method-definition/generator-length-dflt.js
create mode 100644 test/language/expressions/object/method-definition/name-length-dflt.js
create mode 100644 test/language/expressions/object/setter-length-dflt.js
create mode 100644 test/language/statements/class/gen-method-length-dflt.js
create mode 100644 test/language/statements/class/getter-param-dflt.js
create mode 100644 test/language/statements/class/method-length-dflt.js
create mode 100644 test/language/statements/class/setter-length-dflt.js
create mode 100644 test/language/statements/class/static-method-length-dflt.js
create mode 100644 test/language/statements/function/length-dflt.js
create mode 100644 test/language/statements/generators/length-dflt.js
diff --git a/test/language/default-parameters/function-length.js b/test/language/default-parameters/function-length.js
deleted file mode 100644
index c26f313a6e..0000000000
--- a/test/language/default-parameters/function-length.js
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 14.1.6
-description: >
- Default parameters' effect on function length
-info: >
- Function length is counted by the non initialized parameters in the left.
-
- FormalsList : FormalParameter
-
- 1. If HasInitializer of FormalParameter is true return 0
- 2. Return 1.
-
- FormalsList : FormalsList , FormalParameter
-
- 1. Let count be the ExpectedArgumentCount of FormalsList.
- 2. If HasInitializer of FormalsList is true or HasInitializer of
- FormalParameter is true, return count.
- 3. Return count+1.
----*/
-
-assert.sameValue((function (x = 42) {}).length, 0);
-assert.sameValue((function (x = 42, y) {}).length, 0);
-assert.sameValue((function (x, y = 42) {}).length, 1);
-assert.sameValue((function (x, y = 42, z) {}).length, 1);
diff --git a/test/language/expressions/arrow-function/length-dflt.js b/test/language/expressions/arrow-function/length-dflt.js
new file mode 100644
index 0000000000..b06e5b1d5a
--- /dev/null
+++ b/test/language/expressions/arrow-function/length-dflt.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+var f1 = (x = 42) => {};
+
+assert.sameValue(f1.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(f1, 'length');
+verifyNotWritable(f1, 'length');
+verifyConfigurable(f1, 'length');
+
+var f2 = (x = 42, y) => {};
+
+assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y');
+verifyNotEnumerable(f2, 'length');
+verifyNotWritable(f2, 'length');
+verifyConfigurable(f2, 'length');
+
+var f3 = (x, y = 42) => {};
+
+assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42');
+verifyNotEnumerable(f3, 'length');
+verifyNotWritable(f3, 'length');
+verifyConfigurable(f3, 'length');
+
+var f4 = (x, y = 42, z) => {};
+
+assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z');
+verifyNotEnumerable(f4, 'length');
+verifyNotWritable(f4, 'length');
+verifyConfigurable(f4, 'length');
diff --git a/test/language/expressions/class/gen-method-length-dflt.js b/test/language/expressions/class/gen-method-length-dflt.js
new file mode 100644
index 0000000000..0de44b844c
--- /dev/null
+++ b/test/language/expressions/class/gen-method-length-dflt.js
@@ -0,0 +1,59 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+var m1 = class { *m(x = 42) {} }.prototype.m;
+
+assert.sameValue(m1.length, 0, 'formalslist: x = 42');
+verifyNotEnumerable(m1, 'length');
+verifyNotWritable(m1, 'length');
+verifyConfigurable(m1, 'length');
+
+var m2 = class { *m(x = 42, y) {} }.prototype.m;
+
+assert.sameValue(m2.length, 0, 'formalslist: x = 42, y');
+verifyNotEnumerable(m2, 'length');
+verifyNotWritable(m2, 'length');
+verifyConfigurable(m2, 'length');
+
+var m3 = class { *m(x, y = 42) {} }.prototype.m;
+
+assert.sameValue(m3.length, 1, 'formalslist: x, y = 42');
+verifyNotEnumerable(m3, 'length');
+verifyNotWritable(m3, 'length');
+verifyConfigurable(m3, 'length');
+
+var m4 = class { *m(x, y = 42, z) {} }.prototype.m;
+
+assert.sameValue(m4.length, 1, 'formalslist: x, y = 42, z');
+verifyNotEnumerable(m4, 'length');
+verifyNotWritable(m4, 'length');
+verifyConfigurable(m4, 'length');
diff --git a/test/language/expressions/class/getter-param-dflt.js b/test/language/expressions/class/getter-param-dflt.js
new file mode 100644
index 0000000000..a6cbb974ec
--- /dev/null
+++ b/test/language/expressions/class/getter-param-dflt.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-method-definitions
+es6id: 14.3
+description: >
+ Get accessor method may not have a formal parameter (regardless of the
+ presence of an initializer)
+info: |
+ Syntax
+
+ MethodDefinition[Yield] :
+
+ get PropertyName[?Yield] ( ) { FunctionBody }
+features: [default-parameters]
+negative: SyntaxError
+---*/
+
+0, class { get a(param = null) {} };
diff --git a/test/language/expressions/class/method-length-dflt.js b/test/language/expressions/class/method-length-dflt.js
new file mode 100644
index 0000000000..7d86f69902
--- /dev/null
+++ b/test/language/expressions/class/method-length-dflt.js
@@ -0,0 +1,59 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+var m1 = class { m(x = 42) {} }.prototype.m;
+
+assert.sameValue(m1.length, 0, 'formalslist: x = 42');
+verifyNotEnumerable(m1, 'length');
+verifyNotWritable(m1, 'length');
+verifyConfigurable(m1, 'length');
+
+var m2 = class { m(x = 42, y) {} }.prototype.m;
+
+assert.sameValue(m2.length, 0, 'formalslist: x = 42, y');
+verifyNotEnumerable(m2, 'length');
+verifyNotWritable(m2, 'length');
+verifyConfigurable(m2, 'length');
+
+var m3 = class { m(x, y = 42) {} }.prototype.m;
+
+assert.sameValue(m3.length, 1, 'formalslist: x, y = 42');
+verifyNotEnumerable(m3, 'length');
+verifyNotWritable(m3, 'length');
+verifyConfigurable(m3, 'length');
+
+var m4 = class { m(x, y = 42, z) {} }.prototype.m;
+
+assert.sameValue(m4.length, 1, 'formalslist: x, y = 42, z');
+verifyNotEnumerable(m4, 'length');
+verifyNotWritable(m4, 'length');
+verifyConfigurable(m4, 'length');
diff --git a/test/language/expressions/class/setter-length-dflt.js b/test/language/expressions/class/setter-length-dflt.js
new file mode 100644
index 0000000000..49ec1512dc
--- /dev/null
+++ b/test/language/expressions/class/setter-length-dflt.js
@@ -0,0 +1,39 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+var C = class { set m(x = 42) {} };
+var set = Object.getOwnPropertyDescriptor(C.prototype, 'm').set;
+
+assert.sameValue(set.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(set, 'length');
+verifyNotWritable(set, 'length');
+verifyConfigurable(set, 'length');
diff --git a/test/language/expressions/class/static-method-length-dflt.js b/test/language/expressions/class/static-method-length-dflt.js
new file mode 100644
index 0000000000..4e638ef2ad
--- /dev/null
+++ b/test/language/expressions/class/static-method-length-dflt.js
@@ -0,0 +1,59 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+var m1 = class { static m(x = 42) {} }.m;
+
+assert.sameValue(m1.length, 0, 'formalslist: x = 42');
+verifyNotEnumerable(m1, 'length');
+verifyNotWritable(m1, 'length');
+verifyConfigurable(m1, 'length');
+
+var m2 = class { static m(x = 42, y) {} }.m;
+
+assert.sameValue(m2.length, 0, 'formalslist: x = 42, y');
+verifyNotEnumerable(m2, 'length');
+verifyNotWritable(m2, 'length');
+verifyConfigurable(m2, 'length');
+
+var m3 = class { static m(x, y = 42) {} }.m;
+
+assert.sameValue(m3.length, 1, 'formalslist: x, y = 42');
+verifyNotEnumerable(m3, 'length');
+verifyNotWritable(m3, 'length');
+verifyConfigurable(m3, 'length');
+
+var m4 = class { static m(x, y = 42, z) {} }.m;
+
+assert.sameValue(m4.length, 1, 'formalslist: x, y = 42, z');
+verifyNotEnumerable(m4, 'length');
+verifyNotWritable(m4, 'length');
+verifyConfigurable(m4, 'length');
diff --git a/test/language/expressions/function/length-dflt.js b/test/language/expressions/function/length-dflt.js
new file mode 100644
index 0000000000..724e8f7443
--- /dev/null
+++ b/test/language/expressions/function/length-dflt.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+var f1 = function (x = 42) {};
+
+assert.sameValue(f1.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(f1, 'length');
+verifyNotWritable(f1, 'length');
+verifyConfigurable(f1, 'length');
+
+var f2 = function (x = 42, y) {};
+
+assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y');
+verifyNotEnumerable(f2, 'length');
+verifyNotWritable(f2, 'length');
+verifyConfigurable(f2, 'length');
+
+var f3 = function (x, y = 42) {};
+
+assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42');
+verifyNotEnumerable(f3, 'length');
+verifyNotWritable(f3, 'length');
+verifyConfigurable(f3, 'length');
+
+var f4 = function (x, y = 42, z) {};
+
+assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z');
+verifyNotEnumerable(f4, 'length');
+verifyNotWritable(f4, 'length');
+verifyConfigurable(f4, 'length');
diff --git a/test/language/expressions/generators/length-dflt.js b/test/language/expressions/generators/length-dflt.js
new file mode 100644
index 0000000000..8ea33c7934
--- /dev/null
+++ b/test/language/expressions/generators/length-dflt.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+var f1 = function* (x = 42) {};
+
+assert.sameValue(f1.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(f1, 'length');
+verifyNotWritable(f1, 'length');
+verifyConfigurable(f1, 'length');
+
+var f2 = function* (x = 42, y) {};
+
+assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y');
+verifyNotEnumerable(f2, 'length');
+verifyNotWritable(f2, 'length');
+verifyConfigurable(f2, 'length');
+
+var f3 = function* (x, y = 42) {};
+
+assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42');
+verifyNotEnumerable(f3, 'length');
+verifyNotWritable(f3, 'length');
+verifyConfigurable(f3, 'length');
+
+var f4 = function* (x, y = 42, z) {};
+
+assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z');
+verifyNotEnumerable(f4, 'length');
+verifyNotWritable(f4, 'length');
+verifyConfigurable(f4, 'length');
diff --git a/test/language/expressions/object/getter-param-dflt.js b/test/language/expressions/object/getter-param-dflt.js
new file mode 100644
index 0000000000..12d1a159a4
--- /dev/null
+++ b/test/language/expressions/object/getter-param-dflt.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-method-definitions
+es6id: 14.3
+description: >
+ Get accessor method may not have a formal parameter (regardless of the
+ presence of an initializer)
+info: |
+ Syntax
+
+ MethodDefinition[Yield] :
+
+ get PropertyName[?Yield] ( ) { FunctionBody }
+features: [default-parameters]
+negative: SyntaxError
+---*/
+
+0, { get a(param = null) {} };
diff --git a/test/language/expressions/object/method-definition/generator-length-dflt.js b/test/language/expressions/object/method-definition/generator-length-dflt.js
new file mode 100644
index 0000000000..97cfe97971
--- /dev/null
+++ b/test/language/expressions/object/method-definition/generator-length-dflt.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+var f1 = { *m(x = 42) {} }.m;
+
+assert.sameValue(f1.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(f1, 'length');
+verifyNotWritable(f1, 'length');
+verifyConfigurable(f1, 'length');
+
+var f2 = { *m(x = 42, y) {} }.m;
+
+assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y');
+verifyNotEnumerable(f2, 'length');
+verifyNotWritable(f2, 'length');
+verifyConfigurable(f2, 'length');
+
+var f3 = { *m(x, y = 42) {} }.m;
+
+assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42');
+verifyNotEnumerable(f3, 'length');
+verifyNotWritable(f3, 'length');
+verifyConfigurable(f3, 'length');
+
+var f4 = { *m(x, y = 42, z) {} }.m;
+
+assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z');
+verifyNotEnumerable(f4, 'length');
+verifyNotWritable(f4, 'length');
+verifyConfigurable(f4, 'length')
diff --git a/test/language/expressions/object/method-definition/name-length-dflt.js b/test/language/expressions/object/method-definition/name-length-dflt.js
new file mode 100644
index 0000000000..91db6172ad
--- /dev/null
+++ b/test/language/expressions/object/method-definition/name-length-dflt.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+var f1 = { m(x = 42) {} }.m;
+
+assert.sameValue(f1.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(f1, 'length');
+verifyNotWritable(f1, 'length');
+verifyConfigurable(f1, 'length');
+
+var f2 = { m(x = 42, y) {} }.m;
+
+assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y');
+verifyNotEnumerable(f2, 'length');
+verifyNotWritable(f2, 'length');
+verifyConfigurable(f2, 'length');
+
+var f3 = { m(x, y = 42) {} }.m;
+
+assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42');
+verifyNotEnumerable(f3, 'length');
+verifyNotWritable(f3, 'length');
+verifyConfigurable(f3, 'length');
+
+var f4 = { m(x, y = 42, z) {} }.m;
+
+assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z');
+verifyNotEnumerable(f4, 'length');
+verifyNotWritable(f4, 'length');
+verifyConfigurable(f4, 'length');
diff --git a/test/language/expressions/object/setter-length-dflt.js b/test/language/expressions/object/setter-length-dflt.js
new file mode 100644
index 0000000000..a5e44d602b
--- /dev/null
+++ b/test/language/expressions/object/setter-length-dflt.js
@@ -0,0 +1,39 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+var set = Object.getOwnPropertyDescriptor({ set m(x = 42) {} }, 'm').set;
+
+assert.sameValue(set.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(set, 'length');
+verifyNotWritable(set, 'length');
+verifyConfigurable(set, 'length');
diff --git a/test/language/statements/class/gen-method-length-dflt.js b/test/language/statements/class/gen-method-length-dflt.js
new file mode 100644
index 0000000000..a26a287fe7
--- /dev/null
+++ b/test/language/statements/class/gen-method-length-dflt.js
@@ -0,0 +1,67 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+class C1 { *m(x = 42) {} }
+
+var m1 = C1.prototype.m;
+
+assert.sameValue(m1.length, 0, 'formalslist: x = 42');
+verifyNotEnumerable(m1, 'length');
+verifyNotWritable(m1, 'length');
+verifyConfigurable(m1, 'length');
+
+class C2 { *m(x = 42, y) {} }
+
+var m2 = C2.prototype.m;
+
+assert.sameValue(m2.length, 0, 'formalslist: x = 42, y');
+verifyNotEnumerable(m2, 'length');
+verifyNotWritable(m2, 'length');
+verifyConfigurable(m2, 'length');
+
+class C3 { *m(x, y = 42) {} }
+
+var m3 = C3.prototype.m;
+
+assert.sameValue(m3.length, 1, 'formalslist: x, y = 42');
+verifyNotEnumerable(m3, 'length');
+verifyNotWritable(m3, 'length');
+verifyConfigurable(m3, 'length');
+
+class C4 { *m(x, y = 42, z) {} }
+
+var m4 = C4.prototype.m;
+
+assert.sameValue(m4.length, 1, 'formalslist: x, y = 42, z');
+verifyNotEnumerable(m4, 'length');
+verifyNotWritable(m4, 'length');
+verifyConfigurable(m4, 'length');
diff --git a/test/language/statements/class/getter-param-dflt.js b/test/language/statements/class/getter-param-dflt.js
new file mode 100644
index 0000000000..460bec80b8
--- /dev/null
+++ b/test/language/statements/class/getter-param-dflt.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-method-definitions
+es6id: 14.3
+description: >
+ Get accessor method may not have a formal parameter (regardless of the
+ presence of an initializer)
+info: |
+ Syntax
+
+ MethodDefinition[Yield] :
+
+ get PropertyName[?Yield] ( ) { FunctionBody }
+features: [default-parameters]
+negative: SyntaxError
+---*/
+
+class C { get a(param = null) {} }
diff --git a/test/language/statements/class/method-length-dflt.js b/test/language/statements/class/method-length-dflt.js
new file mode 100644
index 0000000000..42a742ed4b
--- /dev/null
+++ b/test/language/statements/class/method-length-dflt.js
@@ -0,0 +1,67 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+class C1 { m(x = 42) {} }
+
+var m1 = C1.prototype.m;
+
+assert.sameValue(m1.length, 0, 'formalslist: x = 42');
+verifyNotEnumerable(m1, 'length');
+verifyNotWritable(m1, 'length');
+verifyConfigurable(m1, 'length');
+
+class C2 { m(x = 42, y) {} }
+
+var m2 = C2.prototype.m;
+
+assert.sameValue(m2.length, 0, 'formalslist: x = 42, y');
+verifyNotEnumerable(m2, 'length');
+verifyNotWritable(m2, 'length');
+verifyConfigurable(m2, 'length');
+
+class C3 { m(x, y = 42) {} }
+
+var m3 = C3.prototype.m;
+
+assert.sameValue(m3.length, 1, 'formalslist: x, y = 42');
+verifyNotEnumerable(m3, 'length');
+verifyNotWritable(m3, 'length');
+verifyConfigurable(m3, 'length');
+
+class C4 { m(x, y = 42, z) {} }
+
+var m4 = C4.prototype.m;
+
+assert.sameValue(m4.length, 1, 'formalslist: x, y = 42, z');
+verifyNotEnumerable(m4, 'length');
+verifyNotWritable(m4, 'length');
+verifyConfigurable(m4, 'length');
diff --git a/test/language/statements/class/setter-length-dflt.js b/test/language/statements/class/setter-length-dflt.js
new file mode 100644
index 0000000000..b6a962d686
--- /dev/null
+++ b/test/language/statements/class/setter-length-dflt.js
@@ -0,0 +1,39 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+class C { set m(x = 42) {} }
+var set = Object.getOwnPropertyDescriptor(C.prototype, 'm').set;
+
+assert.sameValue(set.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(set, 'length');
+verifyNotWritable(set, 'length');
+verifyConfigurable(set, 'length');
diff --git a/test/language/statements/class/static-method-length-dflt.js b/test/language/statements/class/static-method-length-dflt.js
new file mode 100644
index 0000000000..4a008d9fc8
--- /dev/null
+++ b/test/language/statements/class/static-method-length-dflt.js
@@ -0,0 +1,67 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+class C1 { static m(x = 42) {} }
+
+var m1 = C1.m;
+
+assert.sameValue(m1.length, 0, 'formalslist: x = 42');
+verifyNotEnumerable(m1, 'length');
+verifyNotWritable(m1, 'length');
+verifyConfigurable(m1, 'length');
+
+class C2 { static m(x = 42, y) {} }
+
+var m2 = C2.m;
+
+assert.sameValue(m2.length, 0, 'formalslist: x = 42, y');
+verifyNotEnumerable(m2, 'length');
+verifyNotWritable(m2, 'length');
+verifyConfigurable(m2, 'length');
+
+class C3 { static m(x, y = 42) {} }
+
+var m3 = C3.m;
+
+assert.sameValue(m3.length, 1, 'formalslist: x, y = 42');
+verifyNotEnumerable(m3, 'length');
+verifyNotWritable(m3, 'length');
+verifyConfigurable(m3, 'length');
+
+class C4 { static m(x, y = 42, z) {} }
+
+var m4 = C4.m;
+
+assert.sameValue(m4.length, 1, 'formalslist: x, y = 42, z');
+verifyNotEnumerable(m4, 'length');
+verifyNotWritable(m4, 'length');
+verifyConfigurable(m4, 'length');
diff --git a/test/language/statements/function/length-dflt.js b/test/language/statements/function/length-dflt.js
new file mode 100644
index 0000000000..edcc10fb85
--- /dev/null
+++ b/test/language/statements/function/length-dflt.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+function f1(x = 42) {}
+
+assert.sameValue(f1.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(f1, 'length');
+verifyNotWritable(f1, 'length');
+verifyConfigurable(f1, 'length');
+
+function f2(x = 42, y) {}
+
+assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y');
+verifyNotEnumerable(f2, 'length');
+verifyNotWritable(f2, 'length');
+verifyConfigurable(f2, 'length');
+
+function f3(x, y = 42) {}
+
+assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42');
+verifyNotEnumerable(f3, 'length');
+verifyNotWritable(f3, 'length');
+verifyConfigurable(f3, 'length');
+
+function f4(x, y = 42, z) {}
+
+assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z');
+verifyNotEnumerable(f4, 'length');
+verifyNotWritable(f4, 'length');
+verifyConfigurable(f4, 'length');
diff --git a/test/language/statements/generators/length-dflt.js b/test/language/statements/generators/length-dflt.js
new file mode 100644
index 0000000000..5fbf570467
--- /dev/null
+++ b/test/language/statements/generators/length-dflt.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+ Default parameters' effect on function length
+info: |
+ Function length is counted by the non initialized parameters in the left.
+
+ 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+ [...]
+ 2. Let len be the ExpectedArgumentCount of ParameterList.
+ 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+ len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+ [...]
+
+ FormalsList : FormalParameter
+
+ 1. If HasInitializer of FormalParameter is true return 0
+ 2. Return 1.
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let count be the ExpectedArgumentCount of FormalsList.
+ 2. If HasInitializer of FormalsList is true or HasInitializer of
+ FormalParameter is true, return count.
+ 3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+function* f1(x = 42) {}
+
+assert.sameValue(f1.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(f1, 'length');
+verifyNotWritable(f1, 'length');
+verifyConfigurable(f1, 'length');
+
+function* f2(x = 42, y) {}
+
+assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y');
+verifyNotEnumerable(f2, 'length');
+verifyNotWritable(f2, 'length');
+verifyConfigurable(f2, 'length');
+
+function* f3(x, y = 42) {}
+
+assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42');
+verifyNotEnumerable(f3, 'length');
+verifyNotWritable(f3, 'length');
+verifyConfigurable(f3, 'length');
+
+function* f4(x, y = 42, z) {}
+
+assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z');
+verifyNotEnumerable(f4, 'length');
+verifyNotWritable(f4, 'length');
+verifyConfigurable(f4, 'length');
--
GitLab
From 655a8808520e450442011eaa8ee6e3cf549ad89e Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Thu, 2 Jun 2016 14:14:15 -0400
Subject: [PATCH 7/8] Add tests for arguments obj with dflt parameters
---
.../params-dflt-gen-meth-args-unmapped.js | 106 ++++++++++++++++++
.../params-dflt-gen-meth-ref-arguments.js | 85 ++++++++++++++
...rams-dflt-gen-meth-static-args-unmapped.js | 106 ++++++++++++++++++
...rams-dflt-gen-meth-static-ref-arguments.js | 85 ++++++++++++++
.../class/params-dflt-meth-args-unmapped.js | 103 +++++++++++++++++
.../class/params-dflt-meth-ref-arguments.js | 82 ++++++++++++++
.../params-dflt-meth-static-args-unmapped.js | 103 +++++++++++++++++
.../params-dflt-meth-static-ref-arguments.js | 82 ++++++++++++++
.../function/params-dflt-args-unmapped.js | 82 ++++++++++++++
.../function/params-dflt-ref-arguments.js | 61 ++++++++++
.../generators/params-dflt-args-unmapped.js | 82 ++++++++++++++
.../generators/params-dflt-ref-arguments.js | 61 ++++++++++
.../params-dflt-gen-meth-args-unmapped.js | 88 +++++++++++++++
.../params-dflt-gen-meth-ref-arguments.js | 67 +++++++++++
.../params-dflt-meth-args-unmapped.js | 85 ++++++++++++++
.../params-dflt-meth-ref-arguments.js | 64 +++++++++++
.../params-dflt-gen-meth-args-unmapped.js | 104 +++++++++++++++++
.../params-dflt-gen-meth-ref-arguments.js | 83 ++++++++++++++
...rams-dflt-gen-meth-static-args-unmapped.js | 104 +++++++++++++++++
...rams-dflt-gen-meth-static-ref-arguments.js | 83 ++++++++++++++
.../class/params-dflt-meth-args-unmapped.js | 102 +++++++++++++++++
.../class/params-dflt-meth-ref-arguments.js | 81 +++++++++++++
.../params-dflt-meth-static-args-unmapped.js | 102 +++++++++++++++++
.../params-dflt-meth-static-ref-arguments.js | 81 +++++++++++++
.../function/params-dflt-args-unmapped.js | 82 ++++++++++++++
.../function/params-dflt-ref-arguments.js | 61 ++++++++++
.../generators/params-dflt-args-unmapped.js | 81 +++++++++++++
.../generators/params-dflt-ref-arguments.js | 60 ++++++++++
28 files changed, 2366 insertions(+)
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-args-unmapped.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-ref-arguments.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-args-unmapped.js
create mode 100644 test/language/expressions/class/params-dflt-gen-meth-static-ref-arguments.js
create mode 100644 test/language/expressions/class/params-dflt-meth-args-unmapped.js
create mode 100644 test/language/expressions/class/params-dflt-meth-ref-arguments.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-args-unmapped.js
create mode 100644 test/language/expressions/class/params-dflt-meth-static-ref-arguments.js
create mode 100644 test/language/expressions/function/params-dflt-args-unmapped.js
create mode 100644 test/language/expressions/function/params-dflt-ref-arguments.js
create mode 100644 test/language/expressions/generators/params-dflt-args-unmapped.js
create mode 100644 test/language/expressions/generators/params-dflt-ref-arguments.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-args-unmapped.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-arguments.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-args-unmapped.js
create mode 100644 test/language/expressions/object/method-definition/params-dflt-meth-ref-arguments.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-args-unmapped.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-ref-arguments.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-args-unmapped.js
create mode 100644 test/language/statements/class/params-dflt-gen-meth-static-ref-arguments.js
create mode 100644 test/language/statements/class/params-dflt-meth-args-unmapped.js
create mode 100644 test/language/statements/class/params-dflt-meth-ref-arguments.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-args-unmapped.js
create mode 100644 test/language/statements/class/params-dflt-meth-static-ref-arguments.js
create mode 100644 test/language/statements/function/params-dflt-args-unmapped.js
create mode 100644 test/language/statements/function/params-dflt-ref-arguments.js
create mode 100644 test/language/statements/generators/params-dflt-args-unmapped.js
create mode 100644 test/language/statements/generators/params-dflt-ref-arguments.js
diff --git a/test/language/expressions/class/params-dflt-gen-meth-args-unmapped.js b/test/language/expressions/class/params-dflt-gen-meth-args-unmapped.js
new file mode 100644
index 0000000000..d34478a773
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-args-unmapped.js
@@ -0,0 +1,106 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method().next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-ref-arguments.js b/test/language/expressions/class/params-dflt-gen-meth-ref-arguments.js
new file mode 100644
index 0000000000..880a9466a3
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-ref-arguments.js
@@ -0,0 +1,85 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ *method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(undefined, undefined, 'third', 'fourth').next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-args-unmapped.js b/test/language/expressions/class/params-dflt-gen-meth-static-args-unmapped.js
new file mode 100644
index 0000000000..023b97c759
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-args-unmapped.js
@@ -0,0 +1,106 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-gen-meth-static-ref-arguments.js b/test/language/expressions/class/params-dflt-gen-meth-static-ref-arguments.js
new file mode 100644
index 0000000000..4cc5ed0b3b
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-gen-meth-static-ref-arguments.js
@@ -0,0 +1,85 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (static class expression generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static *method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+};
+
+C.method(undefined, undefined, 'third', 'fourth').next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-meth-args-unmapped.js b/test/language/expressions/class/params-dflt-meth-args-unmapped.js
new file mode 100644
index 0000000000..13ec1699f9
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-args-unmapped.js
@@ -0,0 +1,103 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-meth-ref-arguments.js b/test/language/expressions/class/params-dflt-meth-ref-arguments.js
new file mode 100644
index 0000000000..6025474a6c
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-ref-arguments.js
@@ -0,0 +1,82 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+};
+
+C.prototype.method(undefined, undefined, 'third', 'fourth');
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-meth-static-args-unmapped.js b/test/language/expressions/class/params-dflt-meth-static-args-unmapped.js
new file mode 100644
index 0000000000..570b434c73
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-args-unmapped.js
@@ -0,0 +1,103 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+};
+
+C.method();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/class/params-dflt-meth-static-ref-arguments.js b/test/language/expressions/class/params-dflt-meth-static-ref-arguments.js
new file mode 100644
index 0000000000..1e6c6fc754
--- /dev/null
+++ b/test/language/expressions/class/params-dflt-meth-static-ref-arguments.js
@@ -0,0 +1,82 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (static class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var C = class {
+ static method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+};
+
+C.method(undefined, undefined, 'third', 'fourth');
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/function/params-dflt-args-unmapped.js b/test/language/expressions/function/params-dflt-args-unmapped.js
new file mode 100644
index 0000000000..ae40d5fcf8
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-args-unmapped.js
@@ -0,0 +1,82 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+};
+
+f();
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/function/params-dflt-ref-arguments.js b/test/language/expressions/function/params-dflt-ref-arguments.js
new file mode 100644
index 0000000000..9d7d137257
--- /dev/null
+++ b/test/language/expressions/function/params-dflt-ref-arguments.js
@@ -0,0 +1,61 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (function expression)
+esid: sec-function-definitions-runtime-semantics-evaluation
+es6id: 14.1.20
+features: [default-parameters]
+info: |
+ FunctionExpression : function ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+};
+
+f(undefined, undefined, 'third', 'fourth');
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/expressions/generators/params-dflt-args-unmapped.js b/test/language/expressions/generators/params-dflt-args-unmapped.js
new file mode 100644
index 0000000000..4709ee5b10
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-args-unmapped.js
@@ -0,0 +1,82 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+};
+
+f().next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/generators/params-dflt-ref-arguments.js b/test/language/expressions/generators/params-dflt-ref-arguments.js
new file mode 100644
index 0000000000..7721f8881e
--- /dev/null
+++ b/test/language/expressions/generators/params-dflt-ref-arguments.js
@@ -0,0 +1,61 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [default-parameters]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var f;
+f = function*(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+};
+
+f(undefined, undefined, 'third', 'fourth').next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-args-unmapped.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-args-unmapped.js
new file mode 100644
index 0000000000..2705cc9770
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-args-unmapped.js
@@ -0,0 +1,88 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next();
+
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-arguments.js b/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-arguments.js
new file mode 100644
index 0000000000..acd31981c8
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-gen-meth-ref-arguments.js
@@ -0,0 +1,67 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (generator method)
+esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
+es6id: 14.4.13
+features: [default-parameters]
+info: |
+ GeneratorMethod :
+ * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ *method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(undefined, undefined, 'third', 'fourth').next();
+
+assert.sameValue(callCount, 1, 'generator method invoked exactly once');
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-args-unmapped.js b/test/language/expressions/object/method-definition/params-dflt-meth-args-unmapped.js
new file mode 100644
index 0000000000..dcbaca9b01
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-args-unmapped.js
@@ -0,0 +1,85 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+};
+
+obj.method();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/expressions/object/method-definition/params-dflt-meth-ref-arguments.js b/test/language/expressions/object/method-definition/params-dflt-meth-ref-arguments.js
new file mode 100644
index 0000000000..1bad81a90b
--- /dev/null
+++ b/test/language/expressions/object/method-definition/params-dflt-meth-ref-arguments.js
@@ -0,0 +1,64 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (method)
+esid: sec-runtime-semantics-definemethod
+es6id: 14.3.8
+features: [default-parameters]
+info: |
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters,
+ FunctionBody, scope, strict). If functionPrototype was passed as a
+ parameter then pass its value as the functionPrototype optional argument
+ of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+var obj = {
+ method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(undefined, undefined, 'third', 'fourth');
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-gen-meth-args-unmapped.js b/test/language/statements/class/params-dflt-gen-meth-args-unmapped.js
new file mode 100644
index 0000000000..0c854d66b6
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-args-unmapped.js
@@ -0,0 +1,104 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method().next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-gen-meth-ref-arguments.js b/test/language/statements/class/params-dflt-gen-meth-ref-arguments.js
new file mode 100644
index 0000000000..97b5773cbb
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-ref-arguments.js
@@ -0,0 +1,83 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+es6id: 14.5.16
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ *method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(undefined, undefined, 'third', 'fourth').next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-args-unmapped.js b/test/language/statements/class/params-dflt-gen-meth-static-args-unmapped.js
new file mode 100644
index 0000000000..554565f338
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-args-unmapped.js
@@ -0,0 +1,104 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+}
+
+C.method().next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-gen-meth-static-ref-arguments.js b/test/language/statements/class/params-dflt-gen-meth-static-ref-arguments.js
new file mode 100644
index 0000000000..9ac26245c4
--- /dev/null
+++ b/test/language/statements/class/params-dflt-gen-meth-static-ref-arguments.js
@@ -0,0 +1,83 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (static class expression generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
+
+ GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this GeneratorMethod is strict mode code,
+ let strict be true. Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be GeneratorFunctionCreate(Method,
+ StrictFormalParameters, GeneratorBody, scope, strict).
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static *method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+}
+
+C.method(undefined, undefined, 'third', 'fourth').next();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-meth-args-unmapped.js b/test/language/statements/class/params-dflt-meth-args-unmapped.js
new file mode 100644
index 0000000000..ba0679e748
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-args-unmapped.js
@@ -0,0 +1,102 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-meth-ref-arguments.js b/test/language/statements/class/params-dflt-meth-ref-arguments.js
new file mode 100644
index 0000000000..dafeb78adb
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-ref-arguments.js
@@ -0,0 +1,81 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+}
+
+C.prototype.method(undefined, undefined, 'third', 'fourth');
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-meth-static-args-unmapped.js b/test/language/statements/class/params-dflt-meth-static-args-unmapped.js
new file mode 100644
index 0000000000..a2ad6cb1e8
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-args-unmapped.js
@@ -0,0 +1,102 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+ }
+}
+
+C.method();
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/class/params-dflt-meth-static-ref-arguments.js b/test/language/statements/class/params-dflt-meth-static-ref-arguments.js
new file mode 100644
index 0000000000..7102782ae3
--- /dev/null
+++ b/test/language/statements/class/params-dflt-meth-static-ref-arguments.js
@@ -0,0 +1,81 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (static class expression method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+es6id: 14.5.15
+features: [default-parameters]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ 14.3.8 Runtime Semantics: DefineMethod
+
+ MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
+
+ [...]
+ 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
+ scope, strict). If functionPrototype was passed as a parameter then pass its
+ value as the functionPrototype optional argument of FunctionCreate.
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+class C {
+ static method(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+ }
+}
+
+C.method(undefined, undefined, 'third', 'fourth');
+
+assert.sameValue(callCount, 1, 'method invoked exactly once');
diff --git a/test/language/statements/function/params-dflt-args-unmapped.js b/test/language/statements/function/params-dflt-args-unmapped.js
new file mode 100644
index 0000000000..53fffad608
--- /dev/null
+++ b/test/language/statements/function/params-dflt-args-unmapped.js
@@ -0,0 +1,82 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+}
+
+f();
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/function/params-dflt-ref-arguments.js b/test/language/statements/function/params-dflt-ref-arguments.js
new file mode 100644
index 0000000000..b0a6011f09
--- /dev/null
+++ b/test/language/statements/function/params-dflt-ref-arguments.js
@@ -0,0 +1,61 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+}
+
+f(undefined, undefined, 'third', 'fourth');
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/test/language/statements/generators/params-dflt-args-unmapped.js b/test/language/statements/generators/params-dflt-args-unmapped.js
new file mode 100644
index 0000000000..01c611de8a
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-args-unmapped.js
@@ -0,0 +1,81 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f(x, _ = 0) {
+ assert.sameValue(x, undefined, 'parameter binding value (initial)');
+ assert.sameValue(
+ arguments[0], undefined, 'arguments property value (initial)'
+ );
+
+ arguments[0] = 1;
+
+ assert.sameValue(
+ x, undefined, 'parameter binding value (after arguments modification)'
+ );
+ assert.sameValue(
+ arguments[0], 1, 'arguments property value (after arguments modification)'
+ );
+
+ x = 2;
+
+ assert.sameValue(
+ x, 2, 'parameter binding value (after parameter binding modification)'
+ );
+ assert.sameValue(
+ arguments[0],
+ 1,
+ 'arguments property value (after parameter binding modification)'
+ );
+ callCount = callCount + 1;
+}
+
+f().next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
diff --git a/test/language/statements/generators/params-dflt-ref-arguments.js b/test/language/statements/generators/params-dflt-ref-arguments.js
new file mode 100644
index 0000000000..e1c6b4873a
--- /dev/null
+++ b/test/language/statements/generators/params-dflt-ref-arguments.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.4.12
+features: [default-parameters]
+info: |
+ GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ 1. Let status be the result of performing IteratorBindingInitialization for
+ FormalsList using iteratorRecord and environment as the arguments.
+ 2. ReturnIfAbrupt(status).
+ 3. Return the result of performing IteratorBindingInitialization for
+ FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+function* f(x = arguments[2], y = arguments[3], z) {
+ assert.sameValue(x, 'third', 'first parameter');
+ assert.sameValue(y, 'fourth', 'second parameter');
+ assert.sameValue(z, 'third', 'third parameter');
+ callCount = callCount + 1;
+}
+
+f(undefined, undefined, 'third', 'fourth').next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
--
GitLab
From 418386e33e6a49690616ee1fb66f2f0aa72c2def Mon Sep 17 00:00:00 2001
From: Mike Pennisi <mike@mikepennisi.com>
Date: Thu, 2 Jun 2016 14:21:34 -0400
Subject: [PATCH 8/8] Remove redundant tests
These tests have been re-factored to expand coverage of the "default
parameter" language feature and to more closely adhere to this project's
preferred file organization.
---
.../default-parameters/call-define-values.js | 44 -------------
.../call-returns-reference-error.js | 13 ----
.../default-parameters/class-definitions.js | 21 -------
...eters-always-provide-unmapped-arguments.js | 50 ---------------
.../default-parameters/destructuring.js | 17 ------
.../function-constructor.js | 13 ----
.../language/default-parameters/generators.js | 24 --------
.../default-parameters/method-definitions.js | 14 -----
.../param-ref-initialized.js | 14 -----
.../param-ref-uninitialized.js | 24 --------
.../replace-default-values.js | 61 -------------------
.../default-parameters/rest-parameters.js | 10 ---
.../returns-abrupt-from-property-value.js | 22 -------
test/language/default-parameters/scope.js | 50 ---------------
...r-on-duplicates-on-function-declaration.js | 16 -----
...or-on-duplicates-on-function-expression.js | 16 -----
.../variable-initial-value-as-parameter.js | 40 ------------
.../variable-initial-value-undefined.js | 38 ------------
18 files changed, 487 deletions(-)
delete mode 100644 test/language/default-parameters/call-define-values.js
delete mode 100644 test/language/default-parameters/call-returns-reference-error.js
delete mode 100644 test/language/default-parameters/class-definitions.js
delete mode 100644 test/language/default-parameters/default-parameters-always-provide-unmapped-arguments.js
delete mode 100644 test/language/default-parameters/destructuring.js
delete mode 100644 test/language/default-parameters/function-constructor.js
delete mode 100644 test/language/default-parameters/generators.js
delete mode 100644 test/language/default-parameters/method-definitions.js
delete mode 100644 test/language/default-parameters/param-ref-initialized.js
delete mode 100644 test/language/default-parameters/param-ref-uninitialized.js
delete mode 100644 test/language/default-parameters/replace-default-values.js
delete mode 100644 test/language/default-parameters/rest-parameters.js
delete mode 100644 test/language/default-parameters/returns-abrupt-from-property-value.js
delete mode 100644 test/language/default-parameters/scope.js
delete mode 100644 test/language/default-parameters/syntaxerror-on-duplicates-on-function-declaration.js
delete mode 100644 test/language/default-parameters/syntaxerror-on-duplicates-on-function-expression.js
delete mode 100644 test/language/default-parameters/variable-initial-value-as-parameter.js
delete mode 100644 test/language/default-parameters/variable-initial-value-undefined.js
diff --git a/test/language/default-parameters/call-define-values.js b/test/language/default-parameters/call-define-values.js
deleted file mode 100644
index 1a74cadebf..0000000000
--- a/test/language/default-parameters/call-define-values.js
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 9.2.12
-description: >
- Function call define default values to arguments
-info: >
- 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
-
- 24. If hasDuplicates is true, then
- ...
- 25. Else,
- a. Let formalStatus be IteratorBindingInitialization for formals with
- iteratorRecord and env as arguments.
-
- ES6 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
-
- SingleNameBinding : BindingIdentifier Initializeropt
-
- ...
- 6. If Initializer is present and v is undefined, then
- a. Let defaultValue be the result of evaluating Initializer.
- b. Let v be GetValue(defaultValue).
- ...
----*/
-
-var results;
-
-var o = {};
-
-function fn(a = 1, b = null, c = o, d) {
- return [a, b, c, d];
-}
-
-results = fn();
-
-assert.sameValue(results[0], 1, 'apply default values #1');
-assert.sameValue(results[1], null, 'apply default values #2');
-assert.sameValue(results[2], o, 'apply default values #3');
-
-assert.sameValue(
- results[3], undefined,
- 'Parameters without defaults after default parameters defaults to undefined'
-);
diff --git a/test/language/default-parameters/call-returns-reference-error.js b/test/language/default-parameters/call-returns-reference-error.js
deleted file mode 100644
index 2a6d9176cb..0000000000
--- a/test/language/default-parameters/call-returns-reference-error.js
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 13.3.3.7
-description: >
- Throws a ReferenceError from a unsolvable reference as the default parameter.
----*/
-
-function fn(a = unresolvableReference) {}
-
-assert.throws(ReferenceError, function() {
- fn();
-});
diff --git a/test/language/default-parameters/class-definitions.js b/test/language/default-parameters/class-definitions.js
deleted file mode 100644
index bb3ae02f24..0000000000
--- a/test/language/default-parameters/class-definitions.js
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 14.5
-description: Set default parameters on class definitions
----*/
-
-class C {
- constructor(a = 1) {
- this.a = a;
- }
-
- m(x = 2) {
- return x;
- }
-}
-
-var o = new C();
-
-assert.sameValue(o.a, 1);
-assert.sameValue(o.m(), 2);
diff --git a/test/language/default-parameters/default-parameters-always-provide-unmapped-arguments.js b/test/language/default-parameters/default-parameters-always-provide-unmapped-arguments.js
deleted file mode 100644
index 54ac40a111..0000000000
--- a/test/language/default-parameters/default-parameters-always-provide-unmapped-arguments.js
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 9.2.12
-description: >
- Provide unmapped `arguments` if any parameter has a default value initializer.
-info: >
- 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
-
- 22. If argumentsObjectNeeded is true, then
- a. If strict is true or if simpleParameterList is false, then
- i. Let ao be CreateUnmappedArgumentsObject(argumentsList).
- ...
- d. If strict is true, then
- ...
- e. Else,
- i. Let status be envRec.CreateMutableBinding("arguments").
-flags: [noStrict]
----*/
-
-var _c;
-
-function fn(a, b = 1, c = 1, d = 1) {
- a = false;
- arguments[2] = false;
- _c = c;
- return arguments;
-}
-
-var result = fn(42, undefined, 43);
-
-assert.sameValue(
- result[0], 42,
- 'unmapped `arguments` are not bound to their parameters values'
-);
-
-assert.sameValue(
- result[1], undefined,
- 'unmapped `arguments` preserve the given arguments values'
-);
-
-assert.sameValue(
- _c, 43,
- 'parameters names are not mapped to be bound'
-);
-
-assert.sameValue(
- Object.hasOwnProperty(result, '3'), false,
- 'unmapped `arguments` will only contain values from the arguments list'
-);
diff --git a/test/language/default-parameters/destructuring.js b/test/language/default-parameters/destructuring.js
deleted file mode 100644
index 08b1c93d2c..0000000000
--- a/test/language/default-parameters/destructuring.js
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 13.3.3
-description: >
- Destructuring values on default parameters.
----*/
-
-function fn([a, b] = [1, 2], {c: c} = {c: 3}) {
- return [a, b, c];
-}
-
-var results = fn();
-
-assert.sameValue(results[0], 1);
-assert.sameValue(results[1], 2);
-assert.sameValue(results[2], 3);
diff --git a/test/language/default-parameters/function-constructor.js b/test/language/default-parameters/function-constructor.js
deleted file mode 100644
index 44345a81d4..0000000000
--- a/test/language/default-parameters/function-constructor.js
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 19.2.1.1
-description: >
- Create new Function with default parameters
----*/
-
-var fn = new Function('a = 42', 'b = "foo"', 'return [a, b]');
-var result = fn();
-
-assert.sameValue(result[0], 42);
-assert.sameValue(result[1], 'foo');
diff --git a/test/language/default-parameters/generators.js b/test/language/default-parameters/generators.js
deleted file mode 100644
index b511d5f768..0000000000
--- a/test/language/default-parameters/generators.js
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 14.4
-description: Set default parameters in generator functions
----*/
-
-function *g(a = 1, b = 2, c = 3) {
- var i = 0;
-
- while (i < 3) {
- yield [a, b, c][i];
- i++;
- }
-
- return 42;
-}
-
-var iter = g();
-
-assert.sameValue(iter.next().value, 1);
-assert.sameValue(iter.next().value, 2);
-assert.sameValue(iter.next().value, 3);
-assert.sameValue(iter.next().done, true);
diff --git a/test/language/default-parameters/method-definitions.js b/test/language/default-parameters/method-definitions.js
deleted file mode 100644
index a0c859e677..0000000000
--- a/test/language/default-parameters/method-definitions.js
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 14.3
-description: Set default parameters on method definitions
----*/
-
-var o = {
- m(a = 1, b = 2) {
- return a + b;
- }
-};
-
-assert.sameValue(o.m(), 3);
diff --git a/test/language/default-parameters/param-ref-initialized.js b/test/language/default-parameters/param-ref-initialized.js
deleted file mode 100644
index d03d8deb46..0000000000
--- a/test/language/default-parameters/param-ref-initialized.js
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 9.2.12
-description: >
- Parameters can refer to previous parameters
----*/
-
-function fn(a = 42, b = a) {
- return b;
-}
-
-assert.sameValue(fn(), 42);
-assert.sameValue(fn(17), 17);
diff --git a/test/language/default-parameters/param-ref-uninitialized.js b/test/language/default-parameters/param-ref-uninitialized.js
deleted file mode 100644
index 8410f61e7d..0000000000
--- a/test/language/default-parameters/param-ref-uninitialized.js
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 9.2.12
-description: >
- Parameters can't refer to not initialized parameters
----*/
-
-function fn1(a = a) {
- return a;
-}
-
-assert.throws(ReferenceError, function() {
- fn1();
-});
-
-
-function fn2(a = b, b = 42) {
- return a;
-}
-
-assert.throws(ReferenceError, function() {
- fn2();
-});
diff --git a/test/language/default-parameters/replace-default-values.js b/test/language/default-parameters/replace-default-values.js
deleted file mode 100644
index d1628d4a56..0000000000
--- a/test/language/default-parameters/replace-default-values.js
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 9.2.12
-description: >
- Replace default values, unless argument is undefined
-info: >
- 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
-
- 24. If hasDuplicates is true, then
- ...
- 25. Else,
- a. Let formalStatus be IteratorBindingInitialization for formals with
- iteratorRecord and env as arguments.
-
- ES6 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
-
- SingleNameBinding : BindingIdentifier Initializeropt
-
- ...
- 6. If Initializer is present and v is undefined, then
- a. Let defaultValue be the result of evaluating Initializer.
- b. Let v be GetValue(defaultValue).
- ...
-features: [Symbol]
----*/
-
-function fn(a = 1, b = 2, c = 3) {
- return [a, b, c];
-}
-
-var results = fn('', 'foo', 'undefined');
-assert.sameValue(results[0], '', 'empty string replace default value');
-assert.sameValue(results[1], 'foo', 'string replaces default value');
-assert.sameValue(
- results[2], 'undefined',
- '"undefined" string replaces default value'
-);
-
-results = fn(0, 42, -Infinity);
-assert.sameValue(results[0], 0, 'Number (0) replaces default value');
-assert.sameValue(results[1], 42, 'number replaces default value');
-assert.sameValue(results[2], -Infinity, '-Infinity replaces default value');
-
-var o = {};
-var arr = [];
-results = fn(o, arr, null);
-assert.sameValue(results[0], o, 'object replaces default value');
-assert.sameValue(results[1], arr, 'array replaces default value');
-assert.sameValue(results[2], null, 'null replaces default value');
-
-var s = Symbol('');
-results = fn(true, false, s);
-assert.sameValue(results[0], true, 'boolean true replaces default value');
-assert.sameValue(results[1], false, 'boolean false replaces default value');
-assert.sameValue(results[2], s, 'Symbol replaces default value');
-
-results = fn(undefined, NaN, undefined);
-assert.sameValue(results[0], 1, 'undefined argument does not replace default');
-assert.sameValue(results[1], NaN, 'NaN replaces default value');
-assert.sameValue(results[2], 3, 'undefined argument does not replace default');
diff --git a/test/language/default-parameters/rest-parameters.js b/test/language/default-parameters/rest-parameters.js
deleted file mode 100644
index 9b63fab425..0000000000
--- a/test/language/default-parameters/rest-parameters.js
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 14.1
-description: >
- Rest parameters can not have a default
-negative: SyntaxError
----*/
-
-function fn(...args = [1]) {}
diff --git a/test/language/default-parameters/returns-abrupt-from-property-value.js b/test/language/default-parameters/returns-abrupt-from-property-value.js
deleted file mode 100644
index a19e82d5d9..0000000000
--- a/test/language/default-parameters/returns-abrupt-from-property-value.js
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 13.3.3.7
-description: >
- Return abrupt from a property value as a default argument.
----*/
-
-var obj = {};
-Object.defineProperty(obj, 'err', {
- get: function() {
- throw new Test262Error();
- }
-});
-
-function fn(a = obj.err) {
- return 42;
-}
-
-assert.throws(Test262Error, function() {
- fn();
-});
diff --git a/test/language/default-parameters/scope.js b/test/language/default-parameters/scope.js
deleted file mode 100644
index 6f5c442d92..0000000000
--- a/test/language/default-parameters/scope.js
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 9.2.12
-description: >
- Expressions as parameter default values share the top level context only.
-info: >
- 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
-
- ...
- 27. If hasParameterExpressions is false, then
- ...
- 28. Else,
- a. NOTE A separate Environment Record is needed to ensure that
- closures created by expressions in the formal parameter list do
- not have visibility of declarations in the function body.
- b. Let varEnv be NewDeclarativeEnvironment(env).
- c. Let varEnvRec be varEnv’s EnvironmentRecord.
- d. Set the VariableEnvironment of calleeContext to varEnv.
----*/
-
-var x = 42;
-
-function fn1(a = x) {
- return a;
-}
-assert.sameValue(fn1(), 42);
-
-function fn2(a = function() { return x; }) {
- var x = 1;
-
- return a();
-}
-assert.sameValue(fn2(), 42);
-
-function fn3(a = function() { var x = 0; }) {
- a();
-
- return x;
-}
-assert.sameValue(fn3(), 42);
-
-function fn4(a = y) {
- var y = 1;
-}
-
-// y is only defined on the inner scope of fn4
-assert.throws(ReferenceError, function() {
- fn4();
-});
diff --git a/test/language/default-parameters/syntaxerror-on-duplicates-on-function-declaration.js b/test/language/default-parameters/syntaxerror-on-duplicates-on-function-declaration.js
deleted file mode 100644
index f58099f3a2..0000000000
--- a/test/language/default-parameters/syntaxerror-on-duplicates-on-function-declaration.js
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 14.1.2
-description: >
- It is a SyntaxError if a a not simple parameters list contains duplicate names
-info: >
- FormalParameters : FormalParameterList
-
- It is a Syntax Error if IsSimpleParameterList of FormalParameterList is false
- and BoundNames of FormalParameterList contains any duplicate elements.
-flags: [noStrict]
-negative: SyntaxError
----*/
-
-function fn(a, a = 1) {}
diff --git a/test/language/default-parameters/syntaxerror-on-duplicates-on-function-expression.js b/test/language/default-parameters/syntaxerror-on-duplicates-on-function-expression.js
deleted file mode 100644
index 64e1b915fe..0000000000
--- a/test/language/default-parameters/syntaxerror-on-duplicates-on-function-expression.js
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 14.1.2
-description: >
- It is a SyntaxError if a a not simple parameters list contains duplicate names
-info: >
- FormalParameters : FormalParameterList
-
- It is a Syntax Error if IsSimpleParameterList of FormalParameterList is false
- and BoundNames of FormalParameterList contains any duplicate elements.
-flags: [noStrict]
-negative: SyntaxError
----*/
-
-var fn = function (a, a = 1) {};
diff --git a/test/language/default-parameters/variable-initial-value-as-parameter.js b/test/language/default-parameters/variable-initial-value-as-parameter.js
deleted file mode 100644
index 42c59aff39..0000000000
--- a/test/language/default-parameters/variable-initial-value-as-parameter.js
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 9.2.12
-description: >
- Vars whose names are in the parameters list, initially have the same value as
- the corresponding initialized parameter.
-info: >
- 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
-
- ...
- 27. If hasParameterExpressions is false, then
- ...
- 28. Else,
- a. NOTE A separate Environment Record is needed to ensure that closures
- created by expressions in the formal parameter list do not have visibility
- of declarations in the function body.
- b. Let varEnv be NewDeclarativeEnvironment(env).
- c. Let varEnvRec be varEnv’s EnvironmentRecord.
- d. Set the VariableEnvironment of calleeContext to varEnv.
- e. Let instantiatedVarNames be a new empty List.
- f. For each n in varNames, do
- i. If n is not an element of instantiatedVarNames, then
- 1. Append n to instantiatedVarNames.
- 2. Let status be varEnvRec.CreateMutableBinding(n).
- 3. Assert: status is never an abrupt completion.
- 4. If n is not an element of parameterNames or if n is an element of
- functionNames, let initialValue be undefined.
- 5. else,
- a. Let initialValue be envRec.GetBindingValue(n, false).
- ...
----*/
-
-function fn(a = 1) {
- var a;
-
- return a;
-}
-
-assert.sameValue(fn(), 1);
diff --git a/test/language/default-parameters/variable-initial-value-undefined.js b/test/language/default-parameters/variable-initial-value-undefined.js
deleted file mode 100644
index 85f49d6a7b..0000000000
--- a/test/language/default-parameters/variable-initial-value-undefined.js
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (C) 2015 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 9.2.12
-description: >
- A variable initial value is undefined if its name is not in the
- parameters list.
-info: >
- 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
-
- ...
- 27. If hasParameterExpressions is false, then
- ...
- 28. Else,
- a. NOTE A separate Environment Record is needed to ensure that closures
- created by expressions in the formal parameter list do not have visibility
- of declarations in the function body.
- b. Let varEnv be NewDeclarativeEnvironment(env).
- c. Let varEnvRec be varEnv’s EnvironmentRecord.
- d. Set the VariableEnvironment of calleeContext to varEnv.
- e. Let instantiatedVarNames be a new empty List.
- f. For each n in varNames, do
- i. If n is not an element of instantiatedVarNames, then
- 1. Append n to instantiatedVarNames.
- 2. Let status be varEnvRec.CreateMutableBinding(n).
- 3. Assert: status is never an abrupt completion.
- 4. If n is not an element of parameterNames or if n is an element of
- functionNames, let initialValue be undefined.
- ...
----*/
-
-function fn(a = 1) {
- var b;
-
- return b;
-}
-
-assert.sameValue(fn(), undefined);
--
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